The activation energy for the gas phase decomposition of chloroethane is 254 kJ. CH3CH2C1-C2H4 + HCI
The rate constant at 742 K is 0.000519 /s. The rate constant will be 0.00417 /s at
K.

Consider the following multistep reaction: a b→ab(slow) a ab→a2b(fast)−−−−−−−−−−−−−−−−− 2a b→a2b(overall) based on this mechanism, determine the rate law for the overall reaction. express your answer in standard masteringchemistry format. for example, if the rate law is k[a]3[b]2 type k*[a]^3*[b]^2