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Unformatted text preview: = kg kJ 19 . 300 h 300 = 7 So for variable specific heats: kg kJ 76 . 521 h = ∆ Recall for constant specific heats, ∆ h = 520 kJ/kg, which is less than 0.5% difference. TEAMPLAY Compare the enthalpy change in Btu per mole and Btu per pound of He, O 2 , and H 2 O at one atmosphere pressure as the temperature changes from 400 to 600 F. ˚ 8...
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 Fall '07
 RAMUSSEN
 Thermodynamics, Entropy, Fundamental physics concepts

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