TS EAMCET Medical 2016 Paper

An ideal gas is taken through a process as shown in the figure. It absorbs 100 J of energy during the process AB. No heat is absorbed or rejected along the process BC and rejects 140 J during the process CA. During the process BC, 60 J of work is done on the gas. Internal energy of the gas at A is 2000 J. The internal energy at C is