The activation energy in kJ/mol needs to be determined. Concept introduction: Variation of reaction speed with temperature is represented by Arrhenius’s equation as follows: k = A e − E a R T ....... (1) Here, A is the pre-exponential factor for the reaction, R is gas constant, T is temperature, and k is the reaction rate coefficient, E a energy of activation. If k 1 and k 2 are value of rate constants at temperature T 1 and T 2 respectively. Put these values in equation (1). ln k 2 k 1 = − E a R [ T 1 − T 2 T 1 T 2 ] ....... (2)

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Chapter 14, Problem 14.133MP

Interpretation Introduction

Interpretation:

The activation energy in kJ/mol needs to be determined.

Concept introduction:

Variation of reaction speed with temperature is represented by Arrhenius’s equation as follows:

k=Ae−EaRT ....... (1)

Here, A is the pre-exponential factor for the reaction, R is gas constant, T is temperature, and k is the reaction rate coefficient, Ea energy of activation.

If k1 and k2 are value of rate constants at temperature T1 and T2 respectively. Put these values in equation (1).

lnk2k1=−EaR[T1−T2T1T2] ....... (2)

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