A cylindrical vessel made of thermally i...

A cylindrical vessel made of thermally insulating material is divided into two equal parts by an insulating and. Movable piston. Both parts contain ideal monoatomic gas . The gas in the left part is supplied heat such that the volume of right part becomes one-eight of its initial volume . Work done by the gas in the right part is

`(-9)/2PV`

`9/2PV`

`-3PV`

3PV

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