Chemistry - Thermodynamics - I Question with Solution | TestHub

Assuming that water vapour is an ideal gas, the internal energy $(\Delta \mathrm{U})$ when $1\mathrm{mol}$ of water is vapourised at $1\mathrm{bar}$ pressure and $100^{\circ }\mathrm{C}$, (Given: Molar enthalpy of vapourization of water at $1\mathrm{bar}$ and $373\mathrm{K}=41\mathrm{kJ}{\mathrm{mol}}^{-1}$ and $\mathrm{R}=8.3\mathrm{J}{\mathrm{mol}}^{-1}{\mathrm{K}}^{-1}$ ) will be