Question

A cylinder containing 3.0 moles of a monatomic, ideal gas begins at a pressure of  
2.0 × 10⁵ Pa, with a volume of 0.0365 m³. The gas then goes through the following three processes, which comprise a thermal cycle:

1. The gas is expanded isothermally, to twice its original volume.
2. The gas is cooled isobarically, back to its original volume.
3. The gas is heated isochorically, up to its original pressure.

(a) Find the initial temperature of the gas, in Kelvin.

(b) Find the work done by the gas during each of the above processes.

(c) Find the heat added to the gas during each of the above processes.

(d) Find the net work done by the gas during the above cycle.

(e) Find the net heat added to the gas during the above cycle.

I already have answers to a-c just need help with d. And e.

Answer 1