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# Answer to Question #109338 in Mechanical Engineering for Berryl Mokie

Question #109338
At a pressure of 100 psia and 400 deg F, the specific volume of steam is 4.934 cu. ft/lb, and the specific enthalpy is 1227.5 BTU/lb. Find the internal energy at the given state, BTU/lb. attach solution.
1
2020-04-14T01:46:10-0400

"h=u+pv"

"u=h-pv=1227.5-100*4.934=1227.5 \\frac{BTU}{lb}-493.4\\frac{psia\\cdot ft^3}{lb}="

"=1227.5\\frac{BTU}{lb}-91.3\\frac{BTU}{lb}=1136.2\\frac{BTU}{lb}" .

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23.12.20, 11:39

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