|
Title: At 500 ∘C, cyclopropane (C3H6) rearranges to propene (CH3−CH=CH2). The reaction is first order, ... Post by: Vika123 on Jun 22, 2017 At 500 ∘C, cyclopropane (C3H6) rearranges to propene (CH3−CH=CH2). The reaction is first order, and the rate constant is 6.7×10−4s−1. If the initial concentration of C3H6 is 4.50×10−2 M .
a) What is the half-life (in minutes) of this reaction? b) How many minutes will it take for the concentration of cyclopropane to drop to 6.25% of its initial value? Title: Re: At 500 ∘C, cyclopropane (C3H6) rearranges to propene (CH3−CH=CH2). The reaction is first ... Post by: bio_man on Jun 22, 2017 Hi! Good question. Here's what I know:
K1 = 0.693/t1/2 t1/2 = 0.693/6.7*10^-4 t1/2 = 1034.32 sec. b) K1 = 2.303/t log(initial/final) 6.7 *10^-4 = 2.303/t log(100/12.5) time = 3104.203 sec time = 51.736 min. |