Question 85 of 126

Given that $1 \mathrm{~g}$ of water in liquid phase has volume $1 \mathrm{~cm}^3$ and in vapour phase $1671 \mathrm{~cm}^3$ at atmospheric pressure and the latent heat of vaporization of water is $2256 \mathrm{~J} / \mathrm{g}$; the change in the internal energy in joules for $1 \mathrm{~g}$ of water at $373 \mathrm{~K}$ when it changes from liquid phase to vapour phase at the same temperature is :