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Thermodynamics question

2007 · Shift 0 · Q14
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Thermodynamics question

2007 · Shift 0 · Q14

JEE MainChemistryThermodynamicsMCQ+4 / −1
Assuming that water vapour is an ideal gas, the internal energy change (ΔU)\left( {\Delta U} \right)(ΔU) when 111 mol of water is vapourised at 111 bar pressure and 100∘C{100^ \circ }C100∘C(Given : molar enthalpy of vapourisation of water at 111 bar and 373K=41 kJ mol−1 373K = 41\,kJ\,mo{l^{ - 1}}\,373K=41kJmol−1 and R=8.3 J mol−1 K−1R = 8.3\,J\,mo{l^{ - 1}}\,{K^{ - 1}}R=8.3Jmol−1K−1 )
  1. A
    41.00 kJ mol−141.00\,kJ\,mo{l^{ - 1}}41.00kJmol−1
  2. B
    4.100 kJ mol−14.100\,kJ\,mo{l^{ - 1}}4.100kJmol−1
  3. C
    3.7904 kJ mol−13.7904\,kJ\,mo{l^{ - 1}}3.7904kJmol−1
  4. D
    37.904 kJ mol−137.904\,kJ\,mo{l^{ - 1}}37.904kJmol−1
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