Question

Q. -
A first order reaction is completed 50% in 100 second. Find out the rate constant of the reaction.​

Answer 1

Answer:

Time required for 50% (half) completion of a reaction is called it's half-life period (t 1/2).

So here t 1/2=100.

For a first order reaction,

Rate constant, k=0.693/t1/2=0.693/100 per/sec.

=6.93×10^3 per/sec