posted by Chemgam .
The rate constants for a first order decay reaction are found to be:
K287.3C = 1 X 10-4s-1
K327.4C = 19.2 X 10-4s-1
(a) Determine the value, in s-1 of K250C
(b) How long will it take, at 350C, for the reactant to decay to 1% of its original concentration? Express your answer in seconds.