Question

Identify the reaction order from the following rate constants.

(a) k = 3.1 × 10^-4 sec-1
(b) k = 1.12 × 10^-2
(c) k = 1.35 × 10^-2 mol^-2 let² s^-1
(d) k = 3.4 × 10^-3 mol^– let s^-1

Answer 1

(a) Let the reaction be of nth order

i.e., reaction is of first order.

(b) (atm)^1-n × s^-1 = atm^-1 s^-1

1 – n = -1 : or n = 2

i.e., reaction is of second order.

(c)

i.e., reaction is of third order.

(d)

i.e., reaction is of second order.