A weightless piston divides a thermally insulated cylinder

Last updated: 6/14/2023

A weightless piston divides a thermally insulated cylinder into two parts of volumes V and 3V 2 moles of an ideal gas at pressure P 2 atmosphere are confined to the part with volume V 1 litre The remainder of the cylinder is evacuated Initially the gas is at room temperature The piston is now released and the gas expands to fill the entire space of the cylinder The piston is then pressed back to the initial position the increase of internal energy in the process is given by n 100 then n The ratio of the specific heat of the gas y 1 5