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3kg of air are heated from 400 to 500 K. Assume the air pressure is constant during the heat. Find the change in enthalpy (how

3kg of air are heated from 400 to 500 K. Assume the air pressure is constant during the heat. Find the change in enthalpy (how much energy is needed) based on: a). Air tables from Table A-17. b). Specific heat at the average temperature from Table A-2(b).

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