The work done by a weightless piston in causing an expansing `Delta V` (at constant temperature), when the opposing pressure P is variable, is given by :

The work done by a weightless piston in causing an expansion triangleV ( at constant temperature), when the opposing pressure, P is variable, is given by:

The work done by a system in an expansion against a constant external pressure is :

The work done by one mole of ideal gas when its temperature is increased by 1^@C at constant pressure is

Obtain work done at constant pressure.

StatementI: Work done by a gas in isothermal expansion is more than the work done by the gas in the same expansion adaibatically. Statement II: Temperature remains constant in isothermal ecpansion but not in adiabatic expansion.

StatementI: Work done by a gas in isothermal expansion is more than the work done by the gas in the same expansion adaibatically. Statement II: Temperature remains constant in isothermal ecpansion but not in adiabatic expansion.