A sample of gas in a cylinder of volume 4.2 L at 316 K and 2.68 atm expands to 7.21 L by two different pathways. Path A is an isothermal, reversible expansion. Calculate the work for Path A.

Question

Answer in units of J
Path B has two steps. In the first step, the gas is cooled at constant volume (4.2 L) until its pressure drops to 1.56 atm. In the sec- ond step, the gas is heated and allowed to expand against a constant external pressure of 1.56 atm until the final volume is 7.21 L. Calculate the work for Path B.
Answer in units of J