CHM135H1 Lecture Notes - Activation Energy, Equilibrium Constant
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The use of a catalyst causes the rate constant for the reactionĀ RāP Ā to increase by a factor of exactly 250 at 298 K. Which one of the following statements best describes the effect of the catalyst?Ā
Ā
Assume that the rate constant for the reaction obeys the Arrhenius equation and that the Arrhenius pre-exponential factors are the same for both the catalyzed and uncatalyzed reactions.Ā
Ā
Ā |
The catalyst increases the activation energy by 13.7 kJ mol-1 |
|
Ā |
The catalyst increases the activation energy by 6.43 kJ mol-1 |
|
Ā |
The catalyst decreases the activation energy by 13.7 kJ mol-1 |
|
Ā |
The catalyst decreasesĀ the activation energy by 6.43 kJ mol-1 |
|
Ā |
The catalyst decreases the enthalpy change by 11.8 kJ mol-1 |