Chemistry - Thermodynamics - I Question with Solution | TestHub

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