Question

The rate constant for this second-order reaction is 0.180 M–1·s–1 at 300 °C.

A--> Product

How long (in seconds) would it take for the concentration of A to decrease from 0.920 M to 0.220 M?

Answer 1

For n^th order reaction t can be calculated by following equation

[R] = concentration of A after time t

[R_o] = initial concentration of A

k = rate constant

n = order of reaction

For second order reaction (n= 2) t can be calculated by following equation

t = 19.214 seconds