loitally, a dosed sustem consists Of 21b of water vapor at the temperature and volume of 300°F and 20 ft. The System is compressed isothermally to a volume of 9.05 ft, and there is energy transfer by work of magnitude 70.8 Btu into the SyStem. Negleckng the efects of kinetic and potential energy, Calculate the value of the heat transfer iñ Btu. 3
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