Show that time required for completion `3/4`th of a first order reaction is twice the time required for completion of `1/2` of the reaction.

The time required for 10% completion of a first order reaction at 298 K is equal to that required for its 25% completion at 308 K. If the value of A is 4xx10^10 s^-1 . Calculate k at 318 K and E_a .

Show that for a first order reaction the time required for 75% completion is twice the time required for the completion of 50% of reaction.

For a first order reaction, show that time required for 99% completion is twice the time required for the completion of 90% of reaction.

Show that in a 1st reaction, time required for completion of 99.9% is 10 times of half life time of the reaction.

Show that for a first order reaction, the half life is independed of the initial concentration of reactant.

Find out 2/3 life of a first order reaction in which K = 5.48xx10^-14s^-1

Time required to decompose SO_2Cl_2 to half of its initial amount is 60 minutes. If the decomposition is a first order reaction, calculate the rate constant of the reaction.

A and B can complete a piece of work in 9/5 hours,when they work together.If they work individually then A needs 1fr1/2 hours more than that required by B to complete the same.Find the time required by A and B for the completion of the work working individually.

Calculate the half life period of a first order reaction when the rate constant is 5 year^-1 .

The rate constant for a first order reaction is 60s^-1 . How much time will it take to reduce the concentration of the reactant to 1//16^(th) of its initial value?