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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Br2 (g) + Cl2 (g) = 2 BrCl (g) Initially, 3.4 atm each of bromine gas and chlorine gas are added to a steel cylinder and the reaction comes to equilibrium. At equilibrium, there is 1.0 atm of BrCl. What is the equilibrium pressure of chlorine gas? O A. 2.9 atm O B. 2.4 atm OC.0 atm O D. 1.0 atm O E. 3.9 atm O F. 0.1 atm O G.0.5 atm O H. Cannot be determined from the information given O1. 0.05 atm OJ. 3.4 atm
For the equilibrium reaction: 2 NOCl(g) 2 NO(g) + Cl2(g)5.00 mol NOCl was placed in an otherwise empty 1.00-L flask at a certain temperature. When the system reaches equilibrium 0.83 mol NO is present. Calculate Kcat that temperature. A. 1.6×10-2 B. 61 C. 3.3×10-2 D. 1.1×10-2
Consider the equilibrium system described by the chemical reaction below, which has a value of Kc equal to 1.2×10-4 at a certain temperature. If a solid sample of NH4SH decomposes, what is the equilibrium concentration of NH3 be?
NH3(g) + H2O(l) → NH2 + + H3O+ t The equilibrium constant is 1 x 10 -34. Is this reaction likely to take place? Why? Choose the best answer below. a. Yes, because the equilibrium constant is very small and equilibrium will lie far to the left. b. Yes, because the equilibrium constant is very small and equilibrium will lie far to the right. c. No, because the equilibrium constant is very small and equilibrium will lie far to the right. ☐ d. No, because the equilibrium constant is very small and equilibrium will lie far to the left. Click Submit to complete this assessment.
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.
Predict the effect that the indicated changes will have in (02) concentration at the next exothermic equilibrium. That is, it indicates whether it increases, decreases or will not change. 1. If the temperature is increased 2. If a catalyst is added to the reaction 3. If we increase the volume 4. If (02) is removed from the container Prediga el efecto que tendrán los cambios que se indican en la concentración de [02] en el siguiente equilibrio exotérmico. Es decir, indicar si aumenta, disminuye o no cambiara. (favor de separar las respuestas con comas Ser "y contestar respectivamente a la pregunta) CHa 202 ) -> CO2 (0) + 2 H20 1a) a) Si se aumenta la temperatura b) Si se le añade un catalitico a la reacción c) Si aumentamos el volumen d) Si se remueve [O2] del envase
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The answer is D but I'm not sure why. Please explain
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
11. What has to be equal during chemical equilibrium? The rate of the forward reaction and the rate of the reverse reaction The rate of forming reactants and the rate of forming products The rate of the forward reaction and the rate of forming reactants O The rate of forming products and the rate of reaction