Please answer and show all work

2. A heat engine using 120mg of helium as the working substance follows the cycle shown in the following figure. a. Determine the pressure, temperature, and volume of the gas at point 1, 2, and 3. b. What is the W, Q and AEint for each process 1->2, 2->3, and 3->1? p (atm) 2 Isotherm OHNWAU V (cm3) 0 1000 V max