When a gas expands adiabatically

Cooling takes place when real gas expands adiabatically at

This question has Statement I and Statement II. Of the four choices given after the Statements, choose the one that best describes the two Statements. Statement - I : When hydrogen gas expands adiabatically from high pressure to low pressure at room temperature then heating effect is observed. Statement - II: Hydrogen gas at room temperature is above its inversion temperature.

A one mole of an ideal gas expands adiabatically ato constant pressure such that its temperature Tpropto (1)/(sqrt(V)) .The value of the adiabatic constant gas is

A one mole of an ideal gas expands adiabatically ato constant pressure such that its temperature Tpropto (1)/(sqrt(V)) .The value of the adiabatic constant gas is

One mole of an ideal gas expands adiabatically from temperature T_1 to T_2 .the workdone by the gas is_____.