Chapter 13, Problem 13.19QP

Cyclobutane decomposes to ethylene according to the equation

${\text{C}}_4{\text{H}}_8(g)\stackrel{}{\to }2{\text{C}}_2{\text{H}}_4(g)$

Determine the order of the reaction and the rate constant based on the following pressures, which were recorded when the reaction was carried out at 430°C in a constantvolume vessel.

Time(s)	$P_{C_4{H}_8}(mmHg)$
0	400
2,000	316
4,000	248
6,000	196
8,000	155
10,000	122