Q36 / 170 · Manipal (MET) 2020 · Chemistry

The activation energy of a reaction is zero. The rate constant of the reaction:

A
increases with an increase of temperature
B
decreases with an increase of temperature
C
decreases with decrease of temperature
Correct answer
D
is independent of temperature

Solution

From Arrhenius equation, $\log k=\log A-\frac{E_a}{2.303 R T}$ As the activation energy of a reaction is zero, the rate constant of this reaction becomes zero. It shows that the reaction is independent of temperature.

Hence, the correct answer is option: 'D'.

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