For $\mathrm{N}{}_2\mathrm{O}{}_4(\mathrm{g})\rightleftharpoons 2\mathrm{NO}{}_2(\mathrm{g})$, $\Delta H=+57.2kJ/mol$ (assume constant) and $K_p=0.15$ at $298\mathrm{K}$. Taking $R=8.314\mathrm{J}\mathrm{mo}{\mathrm{l}}^{-1}{\mathrm{K}}^{-1}$, find $K_p$ at $350\mathrm{K}$ to the nearest integer.

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