In a Certain Process a Gas Ends in Its Original

Multiple Choice

In a certain process a gas ends in its original thermodynamic state.Of the following, which is possible as the net result of the process?

A) It is adiabatic and the gas does 50 J of work
B) The gas does no work but absorbs 50 J of energy as heat
C) The gas does no work but rejects 50 J of energy as heat
D) The gas rejects 50 J of heat and does 50 J of work
E) The gas absorbs 50 J of energy as heat and does 50 J of work