Two-tenghts Kmol of Nitrogen in a piston cylinder assembly undergoes two processes in a series as follows...
Process 1-2: Constant pressure at 5 bar from V1=1.33m^3 to V2 = 1m^2
Process 2-3: Constant volume to P3=4bar
Assuming ideal gas behavior and neglecting kinetic and potential energy effects, determine the work and heat transfer for each process in KJ
The Attempt at a Solution
What i have so far is W = f(5 dV, v, 1,1.33) = -1.65KJ. -f=integral
and then Q = ^U + W and I can figure out ^U. The problem i have is with my answer for W. Do i use the equation i presented, or am i suppose to use pV^n = constant. I guess i am just a little confused on what equation is used when.