A gas inside a piston-cylinder assembly undergoes a refrigeration cycle consisting of these three processes: Process 1-2:

Question

A gas inside a piston-cylinder assembly
undergoes a refrigeration cycle consisting of
these three processes:
Process 1-2: Compression with pV = constant
from p₁ = 1 bar, V₁ = 1 m³, to p₂ = 10 bar, V₂ = 0.1
m³.
Process 2-3: Constant volume heating until P3
= P₁.
Process 3-1: Constant-pressure, adiabatic
expansion.
There are no changes in kinetic or potential
energy.
a) [3 pts] Find the work for process 1-2 in kJ.
b) [3] Find the work for process 2-3 in kJ.
c) [3] Find the work for process 3-1 in kJ.
d) [2] Find the net work for the entire cycle in
KJ.
e) [3] Find the net heat transfer for the entire
cycle, in kJ.
f) [3] Find the heat transfer for process 3-1 in
kJ.
g) [3] Knowing Q12 = -100 kJ, find the heat
transfer for process 2-3 in kJ.

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