6. Which of the following is a reason that the rate of reaction increases with increasing temperature? A) The activation energy decreases as the temperature increases. B) Changing the temperature usually alters the reaction mechanism, similar to the effect of a catalyst. C) The change in temperature reduces the overall potential energy change between reactants and products. D) A greater proportion of all the molecules possess kinetic energy that is equal to or greater than the activation energy. E) Hotter molecules stick together better. 7. Why does an increase in concentration increase the rate of reaction? A) The collisions become more effective. B) The number of collisions increases. C) The activation energy decreases. D) The average kinetic energy increases. E) When there are more molecules in the container, they all speed up.

6. Which of the following is a reason that the rate of reaction increases with increasing temperature? A) The activation energy decreases as the temperature increases. B) Changing the temperature usually alters the reaction mechanism, similar to the effect of a catalyst. C) The change in temperature reduces the overall potential energy change between reactants and products. D) A greater proportion of all the molecules possess kinetic energy that is equal to or greater than the activation energy. E) Hotter molecules stick together better. 7. Why does an increase in concentration increase the rate of reaction? A) The collisions become more effective. B) The number of collisions increases. C) The activation energy decreases. D) The average kinetic energy increases. E) When there are more molecules in the container, they all speed up.

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter12: Chemical Equilibrium

Section: Chapter Questions

Problem 1RQ: Characterize a system at chemical equilibrium with respect to each of the following a. the rates of...

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