Question

A gas increases in pressure from 2.00 atm to 6.00 atm at a constant volume of 1.00 m3 and then expands at constant pressure to a volume of 3.00 m3 before returning to its initial state as shown in the figure below. How much work is done in one cycle? kJ

Answer 1

Let w be work done by gas in one cycle.

So w=area of cyclic graph=(0.5)*8=4atm-m³

                                          =405300 Joule

                                          =405.3 KJ

Note:work done on the gas= -(405.3)KJ