The isomerization of cyclopropane to propylene is a first-order process with a half-life of 19 minutes at OC. The total time it takes for the partial pressure of cyclopropane to decrease from 1.0 atmosphere to 0.125 atmosphere at 500 °C is closest to:
(A) 38 minutes
(B) 28.5 38
(C) 76 minutes
(D) 152 minutes
Answers: 2
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