First order conversion of cyclobutane to ethylene


The half-life for the first order conversion of cyclobutane to ethylene,

C4H8(g) -> 2C2H4(g)

is 22.7 s at a particular temperature. How many seconds are needed for the partial pressure of cyclobutane to decrease from 100mmHg to 10mmHg?

A) 52.0s

B) 75.4s

C) 90.0 s

D) 227s

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Chemistry: First order conversion of cyclobutane to ethylene
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