Assuming the water vapour is an ideal gas, the internal energy change – InterviewSolution

1.	Assuming the water vapour is an ideal gas, the internal energy change (ΔU) in kJ when 1 mole of water is vapourised at 177∘C. (Given molar enthalpy of vapourisation of water 177∘C = 37 kJ/mol and R=253 J/molK)
Answer» Assuming the water vapour is an ideal gas, the internal energy change $(Δ U)$ in kJ when 1 mole of water is vapourised at $177^{\circ} C$ . (Given molar enthalpy of vapourisation of water $177^{\circ} C$ = 37 kJ/mol and $R = \frac{25}{3} J/molK$ )

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