Question

Gaseous azomethane decomposes to ethane and nitrogen when heated. The disappearance of azomethane is a first-order reaction with k = 3.6 x 10-4 s -1 at 600 K. (a) A sample of gaseous azomethane is placed in a flask and heated at 600 K for 150 s. What fraction of the sample remains after this time ?(ans is 0.95) (b) How long must a sample be heated so that 99 % of the sample has decomposed ? (ans is 1.27 x 104 sec)

Answer 1