Which of the following parameters would be different for a reaction carried out in the presence of a catalyst, compared with the same reaction carried out in the absence of a catalyst? (Hint: See Section 5.13.)
ΔG°, ΔH°, Ea, ΔSz, ΔH°, Keq. ΔGz, ΔS°, Krate
Interpretation: The parameters those are different for a reaction taking place in the presence of a catalyst compared with the same reaction taking place in the absence of a catalyst has to be identified.
Concept introduction:
Catalyst: Substance which helps in increasing the rate of a particular reaction without getting consumed in the reaction. It does not get consumed or changed by the reaction. It provides a different pathway where the transition state is more stable and with shorter energy hill.
Explanation of Solution
Catalyst provides a different pathway where the transition state is more stable and with shorter energy hill. Energy difference of the rate-determining step taking place between the reactant and transition state is reduced by a catalyst and increases the rate of the reaction. Hence the height of energy hill is decreased in this step. The parameters that depend on the energy difference of the rate-determining step taking place between the reactant and transition state differ while the reaction occurs in presence of a catalyst. Therefore, the parameters those are different for a reaction taking place in the presence of a catalyst compared with the same reaction taking place in the absence of a catalyst are
The parameters those are different for a reaction taking place in the presence of a catalyst compared with the same reaction taking place in the absence of a catalyst were identified as
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Chapter 22 Solutions
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