Question

Twenty percent of a first order reaction is complete within a 10 minutes. Its 40% would be completely within a total time
of ___ minutes.
(1) 19.3
(2) 20
(3) 23.4
(4) 22.9​

Answer 1

Answer:

Twenty percent of a first order reaction is complete within a 10 minutes. Its 40% would be completely within a total time of 20 minutes.