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. 

State the characteristics of order of 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.

The conversion of molecules x to y follows second order kinetics. Its concentration of x is increased to three times how will it affect the rate of formation of y?
For the reaction x ➝ y as it follows second order kinetics wherefore the rate of formation of y?

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?

The decomposition of NH₃ on platinum surface is zero reaction. What are the rate of production of N₂ and H₂ it K = 2.5 x 10^-4mol L^-1 S^-1?

Reaction is first order in A and second in B.
(i) Write the different rate equation.
(ii) How is the rate affected on increasing the concentration of B three times?
(iii) How is the rate affected when the concentrations of both A and B are doubled?

The specific reaction rates of a chemical reaction are 2.45 x 10^-5 sec^-1 at 273 K and 16.2 x 10^-4 sec^-1 at 303 K. Calculate the activation energy.

Rate constant of a first order reaction is 0.45 sec^-1, calculate its half life.

A first order reaction completes 25% of the reaction in 100 mins. What are the rate constant and half life values of the reaction?

If 30% of a first order reaction is completed in 12 mins, what percentage will be completed in 65.33 mins?

Show that for a first order reaction the time required for 99.9% completion is about 10 times its half life period.

The half life period of first order reactions is 10 mins. What percentage of the reactant will remain after one hour?