For a phase change$H _2 O ( l ) \underset{1 bar , 0^{\circ} C }{\rightleftharpoons} H _2 O ( s )$

Which of the following is not an extensive property?

Assertion : During an adiabatic process,heat energy is not exchanged between the system and its surroundings.
Reason : The temperature of a gas increases when it undergoes an adiabatic expansion.

During the isothermal expansion of an ideal gas,its enthalpy change is ......

The change in internal energy of a system depends upon

Although heat is a path function,heat absorbed by the system under certain specific conditions is independent of path. What are those conditions? Explain.