The following data are for the gas phase decomposition of dinitrogen pentoxide at $335K.$

$N_2{O}_5(g)longrightarrow2N{O}_2(g)+\frac{1}{2}{O}_2(g)$

$\backslash$table$[[[N_2{O}_5],M,0\mathrm{.}210,0\mathrm{.}105,5\mathrm{.}25{10}^{-2},2\mathrm{.}63{10}^{-2}$