Calculate the average life of `79A^(Au^(198))` leaving `t^(1//2)` = 150 days.

Determine the average life of U^(238) having t^(1//2) = 140 days.

The decomposition of H_(2)O_(2) is a first order reaction . The rate constant of the reaction can be expressed as logk=14.34-(1.25xx10^(4))/(T) . Calculate the activation energy of the reaction . At what temperature does the half-life of the reaction become 265min?

Calculate the half-life of a first order reaction from their rate constants: 2"min"^(-1)

Calculate the half-life of a first order reaction from their rate constants: 4y^(-1)

Calculate the half-life of a first order reaction from their rate constants: 200s^(-1)

Calculate the maximum length of a vetica steel wire just before its snaps. Breaking stress of steel is 7.9 times 10^9 N.m^-2 and density of steel is 7.9 times 10^3 .m^-3 .

Calculate the decay constant for Ag^(108) if its half life is 2.31 minutes.

The rate constant of a first order reaction is 2.31xx10^(-3)s^(-1) Calculate the half-life period of the activation energy of the reaction.

Calculate the partial pressures of O_2 and H_2 in a mixture of 3 moles of O_2 and 1 mole of H_2 at S.T.P.