TS EAMCET 04 May 2019 Shift 2 Solved Paper

An ideal gas at initial temperature T0 and initial volume V0 is expanded adiabatically to a volume 2V0. The gas is then expanded isothermally to a volume 5V0 and thereafter compressed adiabatically so that the temperature of the gas becomes again T0. If the final volume of the gas is α V0, then the value of constant a is