Question

The initial rate for a first order reaction is 0.6932*10^-2 mol\l. And intial conc. Of the reactant is 0.1'm . Then t1\2 is equalbto

Answer 1

K = 6932×10 raise to - 6/10-¹

= 6932×10 raise to -5

So,

T½= 0.693/0.06932

= 100 seconds.