A Ax²AVAavAPoDEC20V30. Equilibrium is the state in which31. What is a catalyst?EF E=29. A gas mixture of N2, O2 and He exerts a total pressure of 1 atmosphere. N₂ exerts a pressure of 0.2atmospheres. O₂ exerts a pressure of 0.5 atmospheres. What is the pressure of He?a. The rate of the forward reaction is greater than the reverse reaction.b. The rate of the reverse reaction is greater than the forward reaction.c. The rate of the forward reaction and reverse reaction are equal.33. What would increase the rate of a reaction?English (United States)32.A buffera) Resists change in temperature when small amounts of acid or base are added.b) Forces the reaction to the rightc) Resists changes in pH when small amounts of acid or base are added.34. A reaction that releases heat isa. An endothermic reactionb. An exothermic reactionffice of Career Servicesa. Increase the concentration of the reactantsb. A catalystc. A temperature increased. All of the aboveE-AL ¶Accessibility: UnavailabletvAaBbCcDdENormalMacBook AirAaBbCcLNo SpaciFocusER EA

29). 0.3 atm 30). C 31) 32) . C 33).D 34). B

29. A gas mixture of N2, O2 and He exerts a total pressure of 1 atmosphere. N₂ exerts a pressure of 0.2 atmospheres. O₂ exerts a pressure of 0.5 atmospheres. What is the pressure of He? 30. Equilibrium is the state in which a. The rate of the forward reaction is greater than the reverse reaction. b. The rate of the reverse reaction is greater than the forward reaction. c. The rate of the forward reaction and reverse reaction are equal. 31. What is a catalyst? 32. A buffer a) Resists change in temperature when small amounts of acid or base are added. b) Forces the reaction to the right c) Resists changes in pH when small amounts of acid or base are added. 33. What would increase the rate of a reaction? DEC 20 a. Increase the concentration of the reactants b. A catalyst c. A temperature increase d. All of the above 34. A reaction that releases heat is a. An endothermic reaction b. An exothermic reaction English (United States) ffice of Career Services Accessibility: Unavailable tv (0 Focus E A

29. A gas mixture of N2, O2 and He exerts a total pressure of 1 atmosphere. N₂ exerts a pressure of 0.2 atmospheres. O₂ exerts a pressure of 0.5 atmospheres. What is the pressure of He? 30. Equilibrium is the state in which a. The rate of the forward reaction is greater than the reverse reaction. b. The rate of the reverse reaction is greater than the forward reaction. c. The rate of the forward reaction and reverse reaction are equal. 31. What is a catalyst? 32. A buffer a) Resists change in temperature when small amounts of acid or base are added. b) Forces the reaction to the right c) Resists changes in pH when small amounts of acid or base are added. 33. What would increase the rate of a reaction? DEC 20 a. Increase the concentration of the reactants b. A catalyst c. A temperature increase d. All of the above 34. A reaction that releases heat is a. An endothermic reaction b. An exothermic reaction English (United States) ffice of Career Services Accessibility: Unavailable tv (0 Focus E A

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Given each equilibrium constant, state whether the reactants are favored, the products are favored, or both the reactants and products are present at equilibrium. a. 5.0 × 10 −4 b. 4.4 × 10 5 c. 350 d. 0.35
Consider the exothermic reaction: A (g) + B (s) → 2X (g) @ 25 °C a. Propose a change in VOLUME so that the equilibrium position shifts towards the REACTANTS. b. Propose a change in TEMPERATURE so that the equilibrium position shifts towards the PRODUCTS. c. Propose a change in [A] so that the equilibrium position shifts towards the PRODUCTS.
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14. At equilibrium, the concentration of the reactants and the products in a reaction a. are equal b. remain constant with time c. change with time d. more than one choice is correct
8. What will happen to the concentrations of CH4, O2, CO2, and H₂O under the following conditions: a. The temperature of the reaction decreases b. The pressure exerted on the reaction increases c. The concentration of CH4 increases d. The concentration of CO₂ decreases
13. H.(g)+F(g) = 2HF(g) At this temperature, 0.481 Kc =9.41 x 10³ mol H₂ and 0.481 mol F₂ were placed in a 0.750 L container to react. What concentration of HF is present at equilibrium? a. 0.588 M b. 0.600 M c. 1.18 M d. 1.20 M #431 10 e. 1.79 M السلام امن mla