Enzyme 'catalase' increases rate of decomposition e^20 times at 300 K. Ea of catalysed is 2 kcal/mol. If A is unaffected, which of the following is/are correct?

Question

Enzyme 'catalase' increases rate of $H_2O_2$ decomposition e^20 times at 300 K. Ea of catalysed is 2 kcal/mol. If A is unaffected, which of the following is/are correct?

Prashant Kotian · Accepted Answer

Correct answer: A,C,D. k_c/k_u = e^((Ea_u - Ea_c)/RT) = e^20 => (Ea_u - 2.0) / (2*10^-3 * 300) = 20 => Ea_u = 14.0 kcal/mol (a). Catalyzed enzyme reaction is complex (c). Increasing T reduces the exponent 12/RT, so ratio is less than e^20 (d).

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