Q. For combustion of one mole of magnesium in an open container at $300 \,K$ and $1$ bar pressure, $\Delta_{ C } H ^{\Theta}$ $=-601.70\, kJ \,mol ^{-1}$, the magnitude of change in internal energy for the reaction is ____$KJ$(Nearest integer) (Given $: R =8.3 \,J K ^{-1} \,mol ^{-1}$ )
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