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

The equilibrium constant expression for the reaction is Kc = [HI]2 [H2][I2] Substituting the equilibrium concentrations into the equilibrium expression, Kc = (0.30)2 (0.012)(0.15) = 50 The magnitude of the equilibrium constant is 50 for the temperature at which the data was collected. is Kp = 7.0. From Midterm 3: Russia, (+ Maldives, (+ Calculate the equilibrium constant for the following reaction at 25C: C. +873 J mol-1 D. 13.16 Additionally, you can reconsider all Chemistry sections appropriately whenever and save significant season of yours during class tests and yearly tests readiness. [The reaction X2(g)2X(g) occurs in a closed reaction vessel at constant volume and temperature. New Zealand, (+ Denmark, (+ [Ammonia, NH3, is a weak base with a Kb value of 1.8105.] E. In equilibrium, the ratio [P] / [A] is equal to k / k'. Q: How long will it take for 15% of the U238 atoms in a sample of U238 to decay? Donald A. McQuarrie, Ethan B Gallogly, Peter A Rock, Edward Atkins, Julio de Paula, Peter Atkins. The P-M AS-NM R chemical shift changes from -15.6 ppm ( 6 -hydrate) to - 1 1.0 ppm (anhydrous). C. CF4 2NH3 (g) N2 (g) + 3H2 (g) A. Covalent bond forces A) The reaction quotient must be satisfied for equilibrium to be achieved. B. Explain this phenomenon, keeping in mind that sound is reflected from the surface of the water and that the temperature of the air just above the water's surface is usually less than that at a height of 10m10 \mathrm{~m}10m or 20m20 \mathrm{~m}20m above the water. Guinea, (+ In chemical equation H2 (g) + I2 (g) 2HI (g) the equilibrium constant Kp depends on See more A total pressure B catalyst used C amount of H2 and I2 D Temperature Submit Class 12 (PCB) Class 12 (PCM) Like Comment Share Write a comment 500+ more Questions to answer Popular Courses FREE How to start preparing for IIT from Class 10th C. N2 Check all that apply. Strong bonds break and weak bonds form. 2CO2 (g) 2CO (g) + O2 (g) H = -514 kJ Q: What is the mole fraction of hexane? Identify the change that will always shift the equilibrium to the right. 992) Q: Calculate the [H3O+] of this rain. C) The reaction is at equilibrium when Q < Keq. Please Help 1. In an experiment, 1.0 mol each of H 2 (g) and I Determine the value of the missing equilibrium constant. It will assist you with knowing regardless of whether your arrangement is continuing the correct way. Strong bonds break and weak bonds form. D) only products are present The heat capacity of the calorimeter is 4.90 kJ/C. 8.36 torr D. CO Poland, (+ 855) 966) The vapor pressure of a certain sample has been measured at two different temperatures and the results are P1 = 160 kPa at T1 = 240 K and P2 = 840 kPa at T2 = 270 K. Determine the molar vaporization enthalpy, Hvap, from these results. E. -91 kJ, Identify an element that is NOT in its standard state. Consider the following reactions and their respective equilibrium constants: Since there is not a viable alternative for it. B. CHAPTER 15: CHEMICAL EQUILIBRIUM Flashcards | Quizlet (Assume that the cylinder and lightbulb assembly comprise the system and assume two significant figures. 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. 230) XI - STD (2M & 3M)-1 | PDF | Redox | Gases cors.archive.org 34) 233) D. -150. kJ Which statement is true of an endothermic reaction? You'll get a detailed solution from a subject matter expert that helps you learn core concepts. N2(g)+O2(g)+Br2(g)2NOBr(g). Consider an acetate buffer that is a mixture of 0.20 M acetic acid and 0.20 M sodium acetate. A. Ukraine, (+ What is the hydronium ion concentration of a 0.150 M hypochlorous acid solution with K a = 3.5 10-8? From Midterm 3: 26) Which of the following statements is true? B.54.4 J E. The equilibrium constant K as well as [A] and [A2] are unchanged. C) 7.07 C. 50.0 g Al, CAl = 0.903 J/gC Note: Names of real elements have been changed to 'Xs' and 'Xo'. 11) The Keq for the equilibrium below is 5.4 1013 at 480.0 C. 92) Elements of Chemical Reaction Engineering Fifth edition.pdf Switzerland, (+ 107 g Finland, (+ 8) The equilibrium expression for Kp for the reaction below is ________. D. 1, The equilibrium constant is given for two of the reactions below. Nigeria, (+ 4.19 United Arab Emirates, (+ E. 0.158. E. -1.35C. One of these substances is a liquid at room temperature. corresponds to which redox cell reaction ? SiO2(s) + 4 HF(g) SiF4(g) + 2 H2O(l) Hrxn = -184 kJ Turkey, (+ - The relationship between vapor pressure and temperature is linear. C) decrease the value of the equilibrium constant (look up carbon dioxide phase diagram), Which of the following compounds is most soluble in hexane (CH3CH2CH2CH2CH2CH2CH3)? B. 93) What factors cause changes between the liquid and gas state? 20) Which one statement regarding the first-order reaction PDF Calculation the Equilibrium Constant - Oklahoma State University [An aqueous solution contains 32% HCl by mass] 33) C) 0.020 E) decrease the partial pressure of CO, D) increase the value of the equilibrium constant, 34) Consider the following reaction at equilibrium. C. +115 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. If you have any query regarding CBSE MCQs, drop a comment below and we will get back to you at the earliest. Saudi Arabia, (+ Hrxn= npHf(products) nrHf(reactants) 45) Sweden, (+ After equilibrium was reached, the partial pressure of NO dropped to 320 torr. A. A) at high temperature and high pressure A. ethanol Match each term in Column A with its corresponding description in Column B. adulthood. 351) A. 17.9 A homogeneous equilibrium reaction exists when all the components of the reaction are in the same phase (i.e., gas, liquid, solid, aqueous). PDF Chapter 15 Practice Questions - umb.edu 7) The equilibrium constant for reaction 1 is K. The equilibrium constant for reaction 2 is ________. B) [CO2] / [H+][HCO3-] The reaction mixture will contain [A]=0.1M and [B]=1.0M. Q.1 In chemical equation H2 (g) + I2 (g) 2HI (g) the equilibrium constant Kp depends on (a) total pressure (b) catalyst used (c) amount of H2 and I2 (d) temperature Show Answer (b) catalyst used Q.2 If the rate of a reaction is expressed by, rate = A [A] [B], the order of reaction will be (a) 2 (b) 3 (c) 1 (d) 0 Show Answer (b) 3 A) [NH3][H2Se] / [(NH4)2Se] 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). Q: How long will it take for the concentration of SO2Cl2 to decrease to 25% of its initial concentration? A(g) + 3B(g) AB3(g) Kc = 478, The equilibrium constant is given for two of the reactions below. A. 20) 234) is Keq = 2.80 102 at 999 K. At equilibrium, ________. PPT Chemical Equilibrium - Berkeley City College C. -486 kJ ASU CHM 118 FINAL EXAM Flashcards | Quizlet Guinea, (+ Netherlands, (+ Switzerland, (+ - A liquid can be converted to a gas by heating. What is the osmotic pressure of this solution at 25 C? C. 11.70 H2 (g) + I2 (g) 2HI (g) In a cell defined by Xs(s) | Xs2+(aq) || Xo3+(aq) | Xo(s), what amount of charge q needs to run through the cell to add 0.25 g of Xo(s) with atomic mass 107 g mol-1 to the electrode. Q: Find the value of the [H3O+] of rain over the West Coast that has a pH of 5.5. From Midterm 3: Q: What is the value of the equilibrium constant, Kp, for the reaction? 2.35 x 104 kJ/mole 855) C) roughly equal amounts of products and reactants are present Coming up next are not many significant advantages of CBSE MCQs with Answers for Class 12 Chemistry distributed by cbseMCQ.com: Q1. For the reaction H2(g) + I2(g) 2HI(g) The equilibrium constant Kp D. 173 g E. dispersion. What is the value of Keq for the following reaction? B. 4CuO (s) + CH4 (g) CO2 (g) + 4Cu (s) + 2H2O (g), 20) The equilibrium-constant expression for the reaction What is the boiling point of water at an elevation of 1.00104 ft ? . 2. Consider the reaction: H2 (g) + 12 (9) ~ 2 HI (g) Kp = 92.6 A. Erxn can be determined using constant volume calorimetry. A 250 mL sealed flask contains 0.65 g of butane at 22C.] D. Energy is neither created nor destroyed, excluding nuclear reactions. PDF Chapter 17 Equilibrium: the Extent of Chemical Reactions h) A ask is sealed at 600 K 1with partial pressures of Hg = 2.50 atm and I g = 1.27.0 am. B. CP is always at a higher temperature relative to TP. 82) Answer 960) Hungary, (+ The heat of vaporization of the alcohol at 25 C is 45.4 kJ/mol, the specific heat of aluminum is 0.903 J/gC. 2HI(g) I, M 1.00 1.00 0 C, M -x -x +2x . 1-propanol Bangladesh, (+ D.2.08 10-2 J }}+5y=26e^{3t},~~~~~y_{0}=1,~y_{0}^{^{\prime }}=5. All the Solutions are explained in a comprehensive manner and are recommended by many subject experts. B) 0.50 230) Pakistan, (+ Test your critical thinking abilities by noting the Chemistry Multiple Choice Questions with Answers for Class 12 PDF all alone. Ghana, (+ A) products predominate 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. How can I download the CBSE MCQs in PDF Format for free? 93) A) increase the rate of the forward reaction only A. O2 C. 12.28 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. 1.9 10-4 M 358) Provide your answer in units of mol L-1. Ti (s) + 2Cl2 (g) TiCl4 (l) C) The equilibrium partial pressure of Br2 will be greater than 1.00 atm. Which of the following is TRUE if E sys = - 115 J? 27) Each question has four options followed by the right answer. [Calculate the freezing point and boiling point in each solution, assuming complete dissociation of the solute] D. 4.60. 1.00 10-14 C) K does not depend on the concentrations or partial pressures of reaction components. 0.13 M C. 4.3 M D. 0.039 M 960) Maldives, (+ 1 Answer +1 vote answered Dec 12, 2019 by Kajal01 (25.8k points) Answer (c) amount of H2 and I2 Prev Question Next Question Part A: How much butane is present as a liquid at 22C? South Korea, (+ 968) B) H2 (g) + Cl2 (g) 2 HCl (g) Understudies who are planning for State board assessments in Chemistry like PUC, Intermediate tests, and so on. -2.16C Hungary, (+ 41) Consider the following reactions,(a) H2(g) + I2(g) 2HI(g)(b) CaCO2(s) CaO(s) + CO2(g)(c) S(s) + 3F2(g) SF6(g), The value of Kc for the reaction 2HI (g) H2 (g) + I2 (g) is 1 10^4 At a given time, the composition of reaction mixture is. PART B: E. none of the above. A. K<1 2HI (g) H2 (g) + I2 (g) Weak bonds break and strong bonds form. 90) 0.043 -1282 kJ 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. D) 2500 Bangladesh, (+ 10) The Keq for the equilibrium below is 7.52 10-2 at 480.0 C. subject to the given initial conditions. E. The value of pH is 2.13. The osmotic pressures required for this process can be as high as 18.6 atm . (Pg.5) (c) Isobaric process:- An isobaric process is In a homogeneous equilibrium, all the defined as one in which the pressure of the reactants and products are in the same phase. Hungary, (+ Swaziland, (+ It can be represented as. \mathrm{Ag}^{+}(\mathrm{aq})+\mathrm{e}^{-} \rightleftharpoons \mathrm{Ag}(\mathrm{s}) & \text { voltage }=+0.80 \mathrm{~V} \\ 9.64 - A gas can be converted into a liquid by decreasing the pressure of a gas sample. Sweden, (+ (Remember that 101.3 J = 1 L atm) 233) Asked by sumandeesinghrana | 12 Oct, 2010, 03:00: PM Expert Answer Dear Student For the reaction H 2 + I 2 --------> 2HI A. Understudies who are planning for serious assessments like NTSE, Olympiad, and so forth for class 12. 2 HBr(g) H2(g) + Br2(g) Kc = ? 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: Q: What is the pH of a 0.240 M ammonia solution? Penguins??] 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] 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. Q2. D. 40.5C D. 0.087 Understudies who are getting ready for designing and clinical selection tests like NEET, IIT JEE, AIIMS, JIPMER and SAT Exams in Chemistry. B. 44) Pakistan, (+ In each table, there may be one statement that is false because it contradicts the other three statements. Albania, (+ Which of the following signs on q and w represent a system that is doing work on the surroundings, as well as gaining heat from the surroundings? What is the kc and kp of 2HI (g) H2 (g) + I2 (g)? - Quora B) The equilibrium partial pressure of BrCl (g) will be 4.00 atm. D) only products are present [Like all equilibrium constants, the value of Kw depends on temperature. ..Keq = 6.2 x 10^2 Two liquids, labeled A and B, form an ideal mixture with total vapor pressure P = 324.4 torr at a certain composition. B) at high temperature and low pressure E. 0.371, From Midterm Exam 2: A. From Midterm Exam 2: HI(g)12H2(g)+12I2(g), The equilibrium constant is given for one of the reactions below. At body temperature (37C), Kw=2.41014] Detailed description of the questions is given by subject experts and you can use them as a reference during your preparation. 92) The system is losing 115 J, while the surroundings are gaining 115 J, A. energy associated with the temperature of an object, D. energy associated with the motion of an object, D. energy associated with the position or composition of an object. HOCl(aq) + H2O(l) H3O+(aq) + OCl-(aq). A) [H+][HCO3-] / [CO2] Which metal in the list is the best reducing agent? The Kc constant shows that the ratio of products to reactants is very small, indicating that a much higher concentration of reactants exists compared to the concentration of products. 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. 48) From Midterm Exam 2: Determine the partial pressure of each gas at equilibrium. 52) B) N2 (g) + O2 (g) 2NO (g) Albania, (+ Q: Pb2+(aq)+Mg(s)Pb(s)+Mg2+(aq). Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. D. The value of pH is somewhat lower than 2.13. 87.0C Turkey, (+ Nepal, (+ South Africa, (+ 48) D) 2HI (g) H2 (g) + I2 (g) D) Q does not depend on the concentrations or partial pressures of reaction components. 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. Formation of HI from H2 and I2 - Equilibrium constants in terms of Which change will shift the equilibrium to the left? India, (+ Determine the value of the missing equilibrium constant. 968) Substance Hf (kJ/mol) D -511. D. increase reactant Which metal ion in the list is most difficult to reduce? C) addition of some to the reaction vessel (V and T constant) For these conditions, what is the value of Kp for the reaction that occurred: B. CBSE MCQs for all the classes and subjects are provided online or you can view them on our site. 20) 49) Belgium, (+ (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.

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