5. (0.7 pt) Effect of temperature on kinetics: Which of the following experiment

Question

5. (0.7 pt) Effect of temperature on kinetics: Which of the following experimental conditions would 2S (s) + 302 (g)--> 2SO3(g) + heat INCREASE the initial rate of this reaction? Write a comment after each one you pick, showing WHY or HOW it increases the reaction rate. More than one answer may be correct. Select all that apply. a) add an appropriate catalyst b) heat the reaction vessel c) increase the volume of the vessel at constant T d) grind the S(s) to a powder e) Increase the pressure at constant T

Explanation / Answer

(a) add an appropriate catalyst. By adding a catalyst, it will lower the activation energy of the reaction and hence the rate of the reaction will increase.

(b) heat the reaction vessel. By heating the reaction vessel, the movements of the reactants will be faster helping them overcome the activation energy barrier and hence the molecules will collide faster and as a result rate of the reaction will increase.

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