In a constant-volume calorimeter, (1 mathrm{~mol}) of trinitrotoluene (TNT) on explosion produces (3 mathrm{~mol}) of (mathrm{CO}) and

Question:

In a constant-volume calorimeter, $1 \mathrm{~mol}$ of trinitrotoluene (TNT) on explosion produces $3 \mathrm{~mol}$ of $\mathrm{CO}$ and $2 \mathrm{~mol}$ of $\mathrm{N}_{2}$. When $0.1572 \mathrm{~g}$ TNT are exploded at $37^{\circ} \mathrm{C}$, the heat evolved is 450 cal. Calculate $\Delta U$ and $\Delta H$ if $1 \mathrm{~mol}$ of TNT explodes at $27^{\circ} \mathrm{C}$.

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