Cyclobutane C₄H₈decomposes to ethene C₂H₄ at 700K.

The reaction is first-order and the rate constant k = 0.0150 min^-1.

Calculate the fraction of cyclobutene that will remain after 2.00 hour.

Question

Cyclobutane C₄H₈decomposes to ethene C₂H₄ at 700K.

The reaction is first-order and the rate constant k = 0.0150 min^-1.

Calculate the fraction of cyclobutene that will remain after 2.00 hour.

| General Chemistry 2

Accepted Answer

First-order reaction:

$\frac{[cyclobutane]}{{[cyclobutane]}_{0}}$ = e^-kt = e^{-0.015 x 120} = 0.165

First-order reactions - 3 | Chemical Kinetics: Rate Laws