- #1
ally1h
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Homework Statement
A heat engine follows the cycle shown in the figure. a) How much net work is done by the engine in one cycle? b) what is the heat flow into the engine per cycle?
Diagram:
http://farm4.static.flickr.com/3050/2703330973_26acb35c27.jpg?v=0
Homework Equations
W = -PΔV
ΔU = Q+W
The Attempt at a Solution
a)
W = -PΔV
W = (-3.00 atm)(0.600 m^3)
W = -1.8 J
b)
ΔU = Q+W
ΔU = 0, due to energy conservation
so...
0 = Q+W
Q = W
Q = 1.8
Everything look okay? I wasn't so sure about part b...