Question

A first order reaction is 20% complete in 10 minutes . calculate the time for the completion of 70% of reaction.​

Answer 1

Answer:

It's a 1st Order Reaction

k= 2.303/t x log100/100-x

Here x=20%

now put the value of x in above equation

k= 2.303/t x log100/100-20

k=2.2x10^-2 min^-1