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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Three lbm of a substance is made to undergo a reversible
expansion process within a piston-cylinder device, starting from
an initial pressure of 100 psia and an initial volume of 2.00 ft3.
The final volume is 4.00 ft3. Determine the moving boundary
work produced by this expansion for each of the following
process paths. Note which process produces the maximum work
and which produces the minimum.
a. Pressure remains constant (p = K)
b. Pressure times volume remains constant ðpV = KÞ:
c. Pressure is proportional to volume ðp = KVÞ:
d. Pressure is proportional to the square of volume ðp = KV2Þ:
e. Pressure is proportional to the square root of volume
ðp = K
ffiffiffiffi
V
q
Þ, where K is a constant in each case.
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