Answer 1

Calculation of activation energy:

Given: T₁ = 30° C = 303 K, T₂ = 50° C = 323 K

Rate constant becomes four times when temperature changes from 30° C to 50° C.

∴ k₂ = 4k₁

or `k_2/k_1 = 4`

To find: Activation energy (E_a)