The actlvation energy for the gas phase decomposition of difluoroperoxide is $72\mathrm{.}4kJ.$

$F_2{O}_{2}longrightarrow{F}_2+O_2$

The rate constant at $240\mathrm{.}0K$ is $\frac{0\mathrm{.}00106}{s}.$ The rate constant will be

Is at $285\mathrm{.}0K.$

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