The isomerization of cyclopropane, C3H6, to propylene, CH2=CHCH3, is first order in cyclopropane and first order overall.

Question:

The isomerization of cyclopropane, C3H6, to propylene, CH2=CHCH3, is first order in cyclopropane and first order overall. At 1000oC, the rate constant is 9.2/s. What is the half-life of cyclopropane at 1000oC? How long would it take for the concentration of cyclopropane to decrease to 50% of its initial value? to 25% of its initial value?