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NEETChemistryThermodynamics (C)

Assuming the water vapour to be a perfect gas, What is the internal energy change when 1 mol of water at 100°C and 1 bar pressure is converted to ice at 0°C? (Given: the enthalpy of fusion of ice is 6.00 kJ mol -1 and heat capacity of water is 4.2 J/g°C)

Options

  1. A-15.48 kJ mol -1
  2. B-13.56 kJ mol -1
  3. C-11.23 kJ mol -1
  4. D-17.56 kJ mol -1

Correct answer

B. -13.56 kJ mol -1

Step-by-step solution

Correct Option is : (B) -13.56 kJ mol -1

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