2)A certain elementary reaction with a single reactant is found to be forth order and to have a half life of 10s at a temperature of 25 C with an initial concentration of 0.1mol/1. 4A products a) Find the rate constant at the given temperature b) Fiad the concentration of the reactant after a reaction time of 15s for the same initial concentration and temperature. 2)A certain elementary reaction with a single reactant is found to be forth order and to have a half life of 10s at a temperature of 25 C with an initial concentration of 0.1mol/1. 4A products a) Find the rate constant at the given temperature b) Fiad the concentration of the reactant after a reaction time of 15s for the same initial concentration and temperature