"If water vapour is assumed to be a perfect gas, molar enthalpy change for vapourisation
Channel: Doubtnut
Date: 2021-11-02

If water vapour is assumed to be a perfect gas, molar enthalpy change for vapourisation of 1 mol of water at 1bar and `100^(@)C` is 41kJ `"mol"^(-1)`. Calculate the internal energy change, when 1 mol of water is vapourised at 1 bar pressure and `100^(@)C.`