71.
At absolute zero temperature, all substances have the same

72.
The expression, $$\Delta {\text{G}} = {\text{nRT}}.l{\text{n}}\frac{{{{\text{P}}_2}}}{{{{\text{P}}_1}}},$$    gives the free energy change

73.
The thermodynamic law, PVY = constant, is not applicable in case of

74.
Entropy change of the reaction, H2O(liquid) ⇒ H2O(gas), is termed as the enthalpy of

75.
Specific __________ does not change during a phase change (e.g. sublimation, melting, vaporisation etc.).

76.
For an ideal gas, the activity co-efficient is

77.
For an isothermal process, the internal energy of a gas

78.
If two gases have same reduced temperature and reduced pressure, then they will have the same

79.
Gibbs phase rule finds application, when heat transfer occurs by

80.
There is a change in __________ during the phase transition.

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