Question

Assuming the water vapour to be a perfect gas, find the
internal energy change when 1 mole of water at 100 °C and
1 bar pressure is converted to ice at 0 °C.
(Given the enthalpy of fusion of ice = 6-0 kJmol, Heat
capacity of water = 4.2 J/g °C)

1. -13.56 J mol-1
2. -13.56 kJ mol-1
3. -1.356 kJ mol-1
4.
-1.356 J mol-1​

Answer 1

Answer:

option ç

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