in chemical equation h2+i2=2hi the equilibrium constant kp depends onin chemical equation h2+i2=2hi the equilibrium constant kp depends on

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is Keq = 230 at 300 C. Calculate the pOH of a solution that contains 7.8 x 10-6 M OH- at 25C. E. -117 kJ. United States, (+ Consider the following reactions and their respective equilibrium constants: Here you will find NCERT MCQ Questions for Class 12 Chemistry with Answers PDF Free Download based on the important concepts and topics given in the textbook.This may assist you to understand and check your knowledge about the chapters. Afghanistan, (+ E) shift the equilibrium to the right, D) increase the rate at which equilibrium is achieved without changing the composition of the equilibrium mixture, Chemistry: Chapter 13 Review: Properties of S, CHAPTER 17: ADDITIONAL ASPECTS OF AQUEOUS EQU. B. 2CO2 (g) 2CO (g) + O2 (g) H = -514 kJ E) none of the above, 12) The Keq for the equilibrium below is 50. E. increase pressure, The following reaction is exothermic. C) 7.07 91) By this, you can dominate CBSE Class 12 Chemistry and play with words without any problem. 880) 27) How is the reaction quotient used to determine whether a system is at equilibrium? If the temperature is raised, then the forward reaction is favored. Germany, (+ \mathrm{Co}^{2+}(\mathrm{aq})+2 \mathrm{e}^{-} \rightleftharpoons \mathrm{Co}(\mathrm{s}) & \text { voltage }=-0.28 \mathrm{~V} \\ B. H2SO3/HSO3- A. K<1 48.6 C Using the equilibrium constant calculated in 2, calculate . A. A.1.89 103 J PART A: Q: If the initial concentration of SO2Cl2 is 1.00 M, how long will it take for the concentration to decrease to 0.72 M ? 1.72 Which statement is true at equilibrium? 2HI = H2 + I2 | Chemical Equation. Turkey, (+ C. 0.222 How can I download the CBSE MCQs in PDF Format for free? Afghanistan, (+ D. +653 J mol-1 Q: Pb2+(aq)+Mg(s)Pb(s)+Mg2+(aq). 2 NO(g) + O2(g) 2 NO2(g) Hrxn = ? United Kingdom, (+ D) Q does not depend on the concentrations or partial pressures of reaction components. D) [SO3]2 / [SO2]2[O2]2 966) 6.41 E. 9.40, A mixture containing 20.6 g of ice (at exactly 0.00 C) and 70.3 g of water (at 62.9 C) is placed in an insulated container. A 250 mL sealed flask contains 0.65 g of butane at 22C.] Which of the following substances would you predict to have the highest Hvap? Careful quan titative dehydration experiments [17] show that at 173 K each protonated form o f the anion has a distinct resonance, see Figure 8 . 230) Swaziland, (+ Rehearsing NCERT Online Chemistry MCQ Questions for Class 12 with Answers is perhaps the most effective way to plan for the CBSE Class 12 board test. A. NH4+/NH3 B) N2 (g) + O2 (g) 2NO (g) Part A: Use the wattage of the lightbulb and the time it is on to calculate the heat transferred, q, in joules. C. 2.13 10-14 These various decision inquiries for twelfth class Chemistry will help you to improve calculated and subject information abilities. C. 840 J N2(g) + O2(g) 2 NO(g) Hrxn = +183 kJ H2 (g) + I2 (g)-- > < -- 2HI(g) H=-10.4 kJ. C. surface tension subject to the given initial conditions. E. 53.1C, The specific heat capacity of liquid water is 4.18 J/g-K. How many joules of heat are needed to raise the temperature of 5.00 g of water from 25.1C to 65.3C? C. HF 1-propanol and D. The value of K remains, but the equilibrium is shifted towards more products. C) 5.4 1013 Energy can be transferred in many ways, one of which is in the form of work. Let's flip the above reaction. HOCl(aq) + H2O(l) H3O+(aq) + OCl-(aq). (i) The value of K increases as the system approaches equilibrium. [The vapor above an aqueous solution contains 17.9 mg water per liter at 25 C] You'll get a detailed solution from a subject matter expert that helps you learn core concepts. B) 1.9 10-14 Which statement describes best the pH of a 0.010 M solution of this acid. B. B) [CO2] / [H+][HCO3-] 358) (Remember that 101.3 J = 1 L atm) D. 1.2 You can get ready really for the Class 12 Chemistry Exam as they assist you with being comfortable with the sort of inquiries showing up in the test. C. The reaction mixture will contain equal concentrations of A and B. Calculate Hrxn for the following reaction: Netherlands, (+ 2 NO (g) N2 (g) + O2 (g). Q: Which acid is stronger? The lightbulb is turned on for 0.015 h, and the assembly expands from an initial volume of 0.90 L to a final volume of 5.89 L against an external pressure of 1.0 atm] Understudies who are planning for State board assessments in Chemistry like PUC, Intermediate tests, and so on. Spain, (+ A) N2 (g) + 3H2 (g) 2NH3 (g) A. Equilibrium is when the rate of the forward reaction equals the rate of the reverse reaction. A. At equilibrium the total pressure in the container is 1.300 atm. A. PO43- Nepal, (+ B. density 2 HD(g) H2(g) + D2(g) Kc = 0.28 E. 8.89. 90) 34) E. The reverse reaction is favored. 973) Determine the value of the missing equilibrium constant. Hrxn = ? The isomerization of methylisonitrile to acetonitrile - A liquid can be converted to a gas by cooling. E. 0.371, From Midterm Exam 2: (look up carbon dioxide phase diagram), Which of the following compounds is most soluble in hexane (CH3CH2CH2CH2CH2CH2CH3)? C) The equilibrium partial pressure of Br2 will be greater than 1.00 atm. In chemical equation H2(g) + I2(g) 2HI (g), the equilibrium Kp depends on (a) total pressure (b) catalyst used (c) amount of H2 and I2 (d) temperature class-12 Please log in or register to answer this question. 351) +238 kJ Q > K p so too many products are present & reaction shifts left to attain eq Rxn shifts , thus products decrease (- signs) and reactants increase (+ signs) . Calculate K and Kp for this reaction. Determine the equilibrium concentration, [H3BO3], of this weak acid in the solution. This equilibrium is an exothermic one. D. +473 kJ The majority of the boards that prefer the NCERT Textbooks can use these Solutions for getting a grip on the subject. The value of pH is somewhat higher than 6.65. Bahrain, (+ A. 46) Another example of a chemical equation that can be used to explain is given below: Equation: 2 S O 2 ( g) + O 2 ( g) 2 S O 3 ( g) Equilibrium Constant: K C = [ S O 3] 2 [ S O 2] 2 [ O 2] Moreover, in terms of finding equilibrium constant for gases, partial pressure is taken into account. B) increase the partial pressure of CO2 (g) C) 2 SO3 (g) 2 SO2 (g) + O2 (g) E) 2N2 (g) + O2 (g) 2N2O (g), 31) In which of the following reactions would increasing pressure at constant temperature change the concentrations of reactants and products, based on Le Chteliers principle? 2.30 Poland, (+ 0.21 M B. ), [A 100-W lightbulb is placed in a cylinder equipped with a moveable piston. B) [(NH4)2Se] / [NH3]2[H2Se] 82) 348) Le Chtelier's principle predicts that a decrease in temperature will ________. B. removing O2 India, (+ Determine the value of the missing equilibrium constant. 855) [Acid rain over the Great Lakes has a pH of about 4.6.] B. 17-2 The value of Q increases as a function of time until it reaches the value of K. b) No, Q would still increase with time because the [I2] would decrease in exactly the same way as [H2] decreases. 64) Switzerland, (+ C) [SO3]2 / [SO2]2[O2] After the reaction reaches equilibrium, the total pressure is 2.65 atm.] 855) 2075 D. H3PO4 The formation of HI from H2 and I2 is an example of gaseous homogeneous equilibrium reaction. 960) 93) A(g) + 2B(g) AB2(g) Kc = 59 [The decomposition of SO2Cl2 is first order in SO2Cl2 and has a rate constant of 1.46104 s1 at a certain temperature] France, (+ A. (a) total pressure(b) catalyst used(c) amount of H2 and I2(d) temperature, (a) 2 10-4(b) 4 10-2(c) 2 10-2(d) 1 10-2, (a) bar min-1, bar2 min-1(b) bar min-1, bar1/2 min-1(c) bar1/2 min-1, bar2 min-1(d) bar min-1, bar1/2 min-1, (a) 9 times(b) 4 times(c) 16 times(d) 8 times, (a) NH4NO2 N2 + 2H2O(b) NO + O3 NO2 + O2(c) 2NO + Br2 2NOBr(d) CH3CHO CH4 + CO, (a) mol L-1 s-1(b) s-1(c) mol-2 L s-1(d)mol L-1, (a) (i)2, (ii) 1(b) (i)2,(ii) 2(c) (i) 1, (ii) 1(d) (i) 1, (ii) 2, (a) temperature of the reaction(b) extent of the reaction(c) initial concentration of the reactants(d) the time of completion of reaction, (a) Rate = k [O] [O3](b) Rate = k [O3] [O2]-1(c) Rate = k [O3](d) Rate = k [O2] [O], (a) zero order reaction(b) first order reaction(c) second order reaction(d) third order reaction, (a) order of a reaction(b) molecuiarity of a reaction(c) fast step of the mechanism of a reaction(d) half-life of the reaction, (a) the order and molecuiarity of the slowest step are equal to one(b) molecuiarity of the reaction can be zero, one or two(c) molecuiarity of the reaction can be determined only experimentally(d) more than one reacting species are involved in one step, (a) the order and molecuiarity of the slowest step are equal to one, (a) the rate of fastest intermediatestep(b) the sum total of the rates of all intermediate steps(c) the average of the rates of all the intermediate steps(d) the rate of slowest intermediate step, (d) the rate of slowest intermediate step, (a) temperature(b) mechanism of reaction as well as relative concentration of reactants(c) molecularity(d) pressure, (b) mechanism of reaction as well as relative concentration of reactants, (a) inversely proportional to the concentration units(b) independent of concentration units(c) directly proportional to concentration units(d) inversely proportional to the square of concentration units, (a) 2 10-2 s-1(b) 4 10-4 s-1(c) 20 s-1(d) 2 10-4 s-1, (a) EaR(b) Ea2.303R(c) 2.303Ea.R(d) Ea2.303, (a) mol L-1s-1(b) s-1(c) L mol-1s-1(d) L2mol-2s-1, (a) triple(b) increase by a factor of 4(c) double(d) remain unchanged. A 43.9-g piece of copper (C_Cu= 0.385 J/gC) at 135.0C is plunged into 254 g of water at 39.0C. Swaziland, (+ What is the need of NCERT Solutions and CBSE MCQs? 2A(g) + 2B(g) A2B2(g) Kc = 28.2. [Seriously? B. C6H6 49) If the value for K = 2.1 X10-2 at 730 K, which substance predominates, HI or H2 and I2 The specific heats of ice, water, and steam are 2.09 J/gK, 4.18 J/gK, and 1.84 J/gK, respectively. Bangladesh, (+ A) some removal of from the reaction vessel (V and T constant) system remains constant during its change from Examples:- (i) H2(g) + I2(g) 2HI(g) the initial to final state. One of these substances is a liquid at room temperature. France, (+ D) 1.90 1019 2) Which one of the following is true concerning the Haber process? Ukraine, (+ (+ A) N2O4 (g) 2NO2 (g) 358) Moreover very advantageous for the promising new kids in town have completed their outline for the term 1 test 2021-22. 50.0 g Cu, CCu = 0.385 J/gC 93) By using Laplace transforms, solve the following differential equations M. What is the half-life, t1/2, for this reaction in units of seconds ? The equilibrium mixture contained 1.37 10 2 M HI, 6.47 10 3 M H2, and 5.94 10 4 M I2. D. 39.5 C, In general, which of the following types of force/interaction is responsible for the existence of the condensed phases of matter? 49) What is the best strategy while answering the Multiple Choice Questions for exams? 234) Propane has a normal boiling point of 42.0C and a heat of vaporization (Hvap) of 19.04 kJ/mol. Chemistry MCQ For Class 12 Chapter astute with Answers PDF Download. The most easily measurable form of energy comes in the form of heat, or enthalpy. B. CP is always at a higher temperature relative to TP. Mexico, (+ E. 48.1 J, [A 100-W lightbulb is placed in a cylinder equipped with a moveable piston. Q: What is the percent ionization of ammonia at this concentration? C 185 7.2 10-5 M Hungary, (+ Check all that apply. Poland, (+ H2 (g) + I2 (g) 2HI (g) At equilibrium in a particular experiment, the concentrations of H2, I2, and HI were 0.15 M, . Chemistry MCQ For Class 12 Chapter keen with Answers are a huge resource for the board test arranging. What is the rate constant, k, for this reaction in units of L mol-1 s-1. 31) =1.33x10-3 M and [H+] = 1.33x10-3M The equilibrium constant, K eq, for the ionization of acetic acid at 25 C is _____. Q2. C. K>1 971) E. none of the above, What is the equilibrium constant for the reaction B(g)1/2A(g)? South Africa, (+ Detailed description of the questions is given by subject experts and you can use them as a reference during your preparation. [Acid rain over the Great Lakes has a pH of about 4.6.] A) [NH3][H2Se] / [(NH4)2Se] D) 2 SO3 (g) 2 SO2 (g) + O2 (g) The heat capacity of the calorimeter is 4.90 kJ/C. E. All of these have intermolecular forces stronger than dispersion. B. HPO42- D. SiF4 Netherlands, (+ 27) E) [F-] / [HF], 19) The expression for for the reaction below is ________. Maldives, (+ - The vapor pressure of a liquid increases with increasing temperature. Which of the following statements is TRUE? Part A: How much butane is present as a liquid at 22C? E. Xd + 2 H+ Xd2+ + H2. Ghana, (+ Oman, (+ E. 29.8 kJ mol-1, What is the conjugate base of H2PO4- ? Saudi Arabia, (+ Strong bonds break and weak bonds form. CBSE MCQs for all the classes and subjects are provided online or you can view them on our site. [A solution contains a mixture of pentane and hexane at room temperature. [The reaction X2(g)2X(g) occurs in a closed reaction vessel at constant volume and temperature. Netherlands, (+ 2.65 2.34 10-7 Weak bonds break and strong bonds form. \mathrm{Zn}^{2+}(\mathrm{aq})+2 \mathrm{e}^{-} \rightleftharpoons \mathrm{Zn}(\mathrm{s}) & \text { voltage }=-0.76 \mathrm{~V} 2A(g) + B(g) A2B(g) Kc = ? Determine the pH value at 25C for a 0.062 M solution of a base that is 100% dissociated. The amounts of H 2 and I 2 present D Temperature Medium Solution Verified by Toppr Correct option is D) The equilibrium constant does not change at all with changes in concentrations, volume, pressure, presence of catalyst, etc. 2 Xs(s) + 3 Xn2+(aq) 2 Xs3+(aq) + 3 Xn(s) . - A liquid can be converted to a gas by heating. [Butane (C4H10) has a heat of vaporization of 22.44 kJ/mol and a normal boiling point of -0.4 C. but the same value of Kc will be obtained at a given temperature. See some more details on the topic What is the equilibrium expression for H2 I2 2HI? B. A. CH4(g)+Cl2(g)CH3Cl(g)+HCl(g), H=99.60 kJ B) H2 (g) + Cl2 (g) 2 HCl (g) Example: 4.00 moles of HI are placed in an evacuated 5.00 L flask and then heated to 800 K. The system is allowed to reach What will be the equilibrium concentration of each species? 26) Which of the following statements is true? Provide your answer in units of coulombs (C). Q: What can you conclude about the equilibrium constant (K) for the reaction? Since there is not a viable alternative for it. O2(g)+2H2O(l)+4Ag(s) 4OH(aq)+4Ag+(aq). Calculate Erxn for the combustion of sucrose in kJ/mol sucrose. E. 25.0 g Au, CAu = 0.128 J/gC, Calculate the change in internal energy (E) for a system that is giving off 25.0 kJ of heat and is changing from 18.00 L to 15.00 L in volume at 1.50 atm pressure. A) increase the rate of the forward reaction only B. An equilibrium mixture contains 2 moles of sulphur dioxide, 1 mole of oxygen and 6 moles of sulphur trioxide. E. The value of pH is 2.13. Rehearsing NCERT Online Chemistry Objective Questions For Class 12 Pdf Answers is perhaps the most ideal way to plan for the CBSE Class 12 board test. United Kingdom, (+ A) decrease the partial pressure of O2 (g) You'll get a detailed solution from a subject matter expert that helps you learn core concepts. D) [H3O+][F-] / [HF] Comprehend the ideas and practice Objective Type Questions for twelfth Class Chemistry however much you can to score well. 100.0C A. Equilibrium constant Kp is equal to the partial pressure of products divided by partial pressure of reactants and the partial pressure are raised with some power which is equal to the coefficient of the substance in balanced equation. The NCERT Solutions for the questions are present on our site or you can find them online too. 0.13 M C. 4.3 M D. 0.039 M What is the osmotic pressure of a solution made by dissolving 45.0 g of glucose, C6H12O6, in enough water to form 225.0 mL of solution at 36.0 C ? . From the data given we can determine the starting concentrations of both H 2 and I 2 to be CH2 = nH2 V = 2.40moles 1.00L = 2.40M CI2 = nI2 V = 2.40moles 1.00L = 2.40M We can now determine the equilibrium concentrations for this reaction by using the ICE method (more here: http://en.wikipedia.org/wiki/RICE_chart) . Isotonic saline solution, which has the same osomotic pressure as blood, can be prepared by dissolving 0.923 g of NaCl in enough water to produce 100. mL of solution. C. Ionic bond forces 966) +1251 J mol-1 The equilibrium constant is given for one of the reactions below. H2 (g) + I2 (g) HI (g) 380) For the comforts of the understudies we have furnished the part savvy Chemistry MCQs with replies here. C. -486 kJ A) 25 Which one statement regarding the first-order reaction Mauritius, (+ 348) Both TP and CP are located on the solid/liquid phase boundary. 966) A) 5.26 10-20 At equilibrium, ________. 28) Which reaction will shift to the left in response to a decrease in volume? Students also can take a free test of the Multiple Choice Questions of Class 12 Chemistry. C) slow the reverse reaction only 7154 Understudies who are planning for different school tests, for example, unit-tests, term-tests, semester tests, half-yearly and yearly tests and assessments on Chemistry-Class 12. What is the primary source of water stored in an aquifer? Each question has four options followed by the right answer. H2 (g) + I2 (g) 2HI (g) What is the value of Keq for the following reaction? According to the following thermochemical equation, what mass of HF (in g) must react in order to produce 345 kJ of energy? N2 (g) + 3H2 (g) 2NH3 (g) C=O 799 D) N2 (g) + 3H2 (g) 2NH3 (g) Tajikistan, (+ C. 1-pentanol 0.556 What is NCERT Exemplar and where can we get its Solutions? H2(g) + Br2(g) 2 HBr(g) Kc = 3.8 104 C. 150 g Essentt - Handpicked Products. Compute the pH at 25C after 3 mL of the base has been added. C. +873 J mol-1 D. 32.2 kJ mol-1 A. Q: What is the mole fraction of hexane? Denmark, (+ C. 0.322 M CBSE MCQs lay a stronger foundation of concepts in students that can be useful for them in their later stages to prepare for any competitive exams. C) N2 (g) + 2O2 (g) 2NO2 (g) 971) Pure pentane and hexane have vapor pressures of 425 torr and 151 torr, respectively, at room temperature.] is Keq = 3.6 10-3 at 999 K. At equilibrium, ________. [An aqueous solution contains 32% HCl by mass] Use these reactions and their equilibrium constants to predict the equilibrium constant for the following reaction: See Answer. Equilibrium hydrogen is defined as a sample of hydrogen existing at the equilibrium ratio of orthohydrogen-parahydrogen at a given temperature (shown by the crimson dash-dot line in the figure). 855) 2HI(g); Equilibrium is the exact balancing of two opposing processes. Science Chemistry For the following reaction, 2HI(g) --> H2(g) + I2(g) a. CH3Cl(g)+Cl2(g)CH2Cl2(g)+HCl(g), H=105.8 kJ, Use the standard reaction enthalpies given below to determine Hrxn for the following reaction: At equilibrium, ________. Le Chtelier's principle predicts that the moles of in the reaction container will increase with ________. Q6. Choose the molecule or compound that exhibits dispersion forces as its strongest intermolecular force. India, (+ Spain, (+ here: 2HI the concentration at equilibrium is H2=I2=HI=4mol/dm B) Keq does not change with temperature, whereas Q is temperature dependent. 27.3 kJ mol-1 D. The value of pH is somewhat lower than 2.13. The symbols have their usual meaning, for example AG stands for the standard Gibbs free energy of reaction and K stands for the equilibrium constant. D. 456 kJ To have a decent groundwork for your impending board test then you should endeavor these internet based tests for Chemistry. B. If you find. C) roughly equal amounts of products and reactants are present 2NO2 (g) 2NO (g) + O2 (g) 82) 32) The rate constant for the reaction is 9.45 10-5 s-1 at 478 K. The half-life of the reaction when the initial [CH3NC] is 0.030 M is ________ s. From Midterm 3: 2CH3NO2(l)+3/2O2(g)2CO2(g)+3H2O(l)+N2(g) Hrxn = -1418 kJ] A 20.0kg20.0 \mathrm{~kg}20.0kg crate sits at rest at the bottom of a 15.0m15.0 \mathrm{~m}15.0m long ramp that is inclined at 34.034.0^{\circ}34.0 above the horizontal. A. Utilizing the assets accessible you can score well in the test. 268) Belgium, (+ Terms T&C. Tajikistan, (+ 2003-2023 Chegg Inc. All rights reserved. C. remove reactant y+4y+5y=26e3t,y0=1,y0=5.y^{^{\prime \prime }}+4y^{^{\prime This quantity of heat is equivalent to: information you need to know about E for the system, [The total change in internal energy is the sum of the heat, q, and work, w: E=q+w]. H2(g)+I2(g)2HI(g) Which of the following statement is/are true? Count the number of atoms of each element on each side of the equation and verify that all elements and electrons (if there are charges/ions) are balanced. Understudies can get to the CBSE NCERT MCQ Questions of Class 12 Chemistry with Answers Pdf of all Chapters liberated from cost from here. 358) Propane has a normal boiling point of 42.0C and a heat of vaporization (Hvap) of 19.04 kJ/mol. 10) The Keq for the equilibrium below is 7.52 10-2 at 480.0 C. 0.233 M An aqueous solution contains 0.10M H 2S and 0.20M H Cl . B) H2 (g) + Cl2 (g) 2 HCl (g) What happens to the vapor pressure of a substance when the temperature is increased? [Butane (C4H10) has a heat of vaporization of 22.44 kJ/mol and a normal boiling point of -0.4 C. Equilibrium constant expression in terms of partial pressures A. 33) D -511. CO2 (s) + H2O (l) H+ (aq) + HCO3- (aq) 4) Which of the following expressions is the correct equilibrium-constant expression for the equilibrium between dinitrogen tetroxide and nitrogen dioxide? 2 CH3OH(l) + 3 O2(g) 2 CO2(g) + 4 H2O(g) Russia, (+ It permits everybody to download CBSE Class 12 Chemistry Chapter-wise MCQs question keep money with addresses in free pdf organization and practice them for additional investigations. Albania, (+ New Zealand, (+ Egypt, (+ Carbonyl fluoride, COF2, is an important intermediate used in the production of fluorine-containing compounds. 64) 3) Which one of the following will change the value of an equilibrium constant? A reversible reaction can proceed in both the forward and backward directions. Hydrogen and nitrogen react to form ammonia according to the following balanced chemical equation: \ce {3H2 (g) + N2 (g) <=> 2NH3 (g)} \nonumber Values of the equilibrium constant at various temperatures were reported as K_ {25C} = 3.3 \times 10^8, K_ {177C} = 2.6 \times 10^3, and K_ {327C} = 4.1. What is the value of Keq for the following reaction? B) reactants predominate The molar mass of sugar is 342.3 g/mol. New Zealand, (+ Q7. 230) Substance Hf (kJ/mol) D. 0.087 46) 37.5 g 224) A -253 Strong bonds break and weak bonds form. H2 (g) + I2 (g) 2HI (g) Denmark, (+ C. 0.0010 The equilibrium constant (Kp) for the interconversion of PCl5 and PCl3 is 0.0121: PCl5 (g) PCl3 (g) + Cl2 (g) . - A liquid can be converted to a gas by heating. A galvanic cell designated as You can utilize the quick links on our page to view or download the CBSE MCQs of all classes in an easy way. Belgium, (+ C. 22.1 kJ mol-1 What is the boiling point of water at an elevation of 1.00104 ft ? What is the specific heat of benzene? (Assume that the cylinder and lightbulb assembly comprise the system and assume two significant figures. B) [SO2] / [SO3] Asked by sumandeesinghrana | 12 Oct, 2010, 03:00: PM Expert Answer Dear Student For the reaction H 2 + I 2 --------> 2HI B. Portugal, (+ 3.48 J/(g C) (look up phase diagram). * Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project D) only products are present B) increase the equilibrium constant so that products are favored NCERT Solutions and CBSE MCQs will provide you an in-depth understanding of all the questions and concepts in NCERT Textbooks. Guinea, (+ C. Xd2+ + 2 H+ Xd + H2 E) an increase in total pressure by the addition of helium gas (V and T constant), B) a decrease in the total pressure (T constant), 33) Consider the following reaction at equilibrium: Bangladesh, (+ Guinea, (+ 9) The equilibrium expression for Kp for the reaction below is ________. Provide your answer in units of volts (V). (Methanol ( CH3OH ) contains hydrogen directly bonded to oxygen, so it has hydrogen bonding. Use the following data: D. capillary action 2 SO2(g) + O2(g) 2 SO3(g) D. - 1.23 x 103 kJ/mole. Xn2+ + 2 e- Xn(s) : E = 1.33 V Q: What is the pH of a 0.240 M ammonia solution? The concentration [A] was measured at two different times: at t1 = 19.4 s the concentration of A was [A]1 = 0.62 M and at time t2 = 60.8 s the result was [A]2 = 0.31 [Nitromethane (CH3NO2) burns in air to produce significant amounts of heat. A. ion-ion Mauritius, (+ What is the hydronium ion concentration of a 0.150 M hypochlorous acid solution with K a = 3.5 10-8? Enter the email address you signed up with and we'll email you a reset link. C. 55.8 C B. Portugal, (+ B) 1 / [HF] E. 1.62. (R = 0.0821 L atm/ (K mol)) A. B. B. C. +115 kJ At the same temperature, pure liquid A has a vapor pressure of 220 torr, while pure liquid B has a vapor pressure of 400 torr. United Arab Emirates, (+ Denmark, (+ How reactions can happened and produce H2 (hydrogen) and I2 (iodine) ? B. B. The value of pH is somewhat higher than 2.13. [Benzene has a heat of vaporization of 30.72 kJ/mol and a normal boiling point of 80.1 C] B) The equilibrium partial pressure of BrCl (g) will be 4.00 atm. C. 62.5C Chemistry MCQ For Class 12 Chapter savvy with answers Online Test is a sort of Mock Test that will assist you with taking care of the few issues of Std twelfth NCERT Chemistry Books.

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