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