An ideal gas having initial pressures P, volume V and temperature T is allowed to expand adiabatically until its volume becomes 5.66 V while its temperature falls to T/2. The work done by the gas during the expansion is
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An ideal gas having initial pressures P, volume V and temperature T is allowed to expand adiabatically until its volume becomes 5.66 V while its temperature falls to T/2. The work done by the gas during the expansion is