A gas undergoes a change of state during which 100J of heat is supplied to it and it does 20J of work. The system is brough back to its original state through a process during which 20 J of heat is released by the gas. What is the work done by the gas in the second process?A. 60 JB. 40 JC. 80 JD. 20 J

A gas undergoes a change of state during which 100J of heat is supplie

1.	A gas undergoes a change of state during which 100J of heat is supplied to it and it does 20J of work. The system is brough back to its original state through a process during which 20 J of heat is released by the gas. What is the work done by the gas in the second process?A. 60 JB. 40 JC. 80 JD. 20 J
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