For the reaction 2A + B ⟶ A₂B. The rate = k [A] [B]² with k = 2.0 x 10^-6 mol? L² S^-1. Calculate the initial rate of the reaction, when [A] = 0.1 mol L^-1, [B] = 0.2 mol L^-1. Calculate the rate of reaction after [A] is reduced to 0.06 mol L^-1

In a pseudo first order hydrolysis of ester in water, the following results were obtained.

1	0	30	60	90
[Ester]mol L-1	0.55	0.31	0.17	0.085

(i) Calculate the average rate of reaction between the time interval 30 to 60 seconds.
(i) Calculate the pseudo first order rate constant for the hydrolysis of ester.

Write an account of the Arrhenius equation for rates of chemical reactions. 

For the reaction R - P, the concentration of a reactant changes from 0.03 M to 0.02 M in 25 minutes. Calculate the average rate of reaction using units of time both in minutes and second.

A first order reaction laws on rate constant 1.15 x 10^-3 S^-1. How long will 5 g of this reactant take to reduce to 3g?