Name: _______________________________ 5) (15 pts) Consider a heat engine which takes 0.350 mol of a diatomic ideal gas a

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Name: _______________________________
5) (15 pts) Consider a heat engine which
takes 0.350 mol of a diatomic ideal gas
around the cycle shown in the PV
diagram. The process from point 2 to
point 3 is adiabatic. For this gas, g =
1.40.
*Potentially helpful constants:
N A = 6.022x1023
kB = 1.38x10-23 J/K
1 atm = 1.013x105 Pa
R = 8.3145 J/mol-K
a) Find the pressure and volume of the
gas at points 1, 2, and 3.
b) Find Q, W, and DEint for each of the 3
processes.
c) Find the net work done by the gas during 1
cycle.
d) Find the net heat flow into the engine during 1
cycle.
e) What is the thermal efficiency of the
eng