4-52E Determine the enthalpy change Dh of oxygen, in Btu/lbm, as it is heated from 800 to 1500 R, using a) the empirical specific heat equation as a function of temperature (Table A-2Ec), b) the cp value at the average temperature (Table A-2Eb), and c) the cp value at room temperature (Table A-2Ea). | |
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