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Thermodynamics question

2021 · 26 Aug · Shift 2 · Q15
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Thermodynamics question

2021 · 26 Aug · Shift 2 · Q15

JEE MainChemistryThermodynamicsNumerical+4 / −1
For water Δ\DeltaΔ vap H = 41 kJ mol −-− 1 at 373 K and 1 bar pressure. Assuming that water vapour is an ideal gas that occupies a much larger volume than liquid water, the internal energy change during evaporation of water is ‾\underline{\hspace{2cm}}​ kJ mol −-− 1 [Use : R = 8.3 J mol −-− 1 K −-− 1]
Numerical answer
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