ThermodynamicsHard
Question
The normal boiling point of water is 100°C. At 100°C
Options
A.the average kinetic energy of molecules in vapour is greater than that of liquid water.
B.the average potential energy of molecules in vapour is greater than that of liquid water.
C.the molar internal energy is same for vapour and liquid water.
D.water boils at any pressure.
Solution
As the intermolecular distance increases against intermolecular attraction, the potential energy increases.
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