1. We have a compression-evaporation heat pump which contains 4 mol of a diatomic ideal gas...
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1. We have a compression-evaporation heat pump which contains 4 mol of a diatomic ideal gas with 5 degrees of freedom. (a) The gas is first compressed adiabatically from a pressure of 1.5 MPa at T 40C to a pressure of 4 MPa at T = 120C. Compute the work done on the gas in this process. = (b) The gas is then allowed to cool at constant pressure down to a temperature T3 Compute the work done on the gas and the heat released by the gas in this process. = 80C. (c) At this pressure and temperature the gas can condense into its liquid form with a latent heat of 920 J-g-. If the molecular weight of this substance is 17g mol, compute the heat released during condensation. (d) Finally, the liquid is then allowed to expand to reach its original pressure and temperature, where it will evaporate and return to its original state. The coefficient of performance of this cycle is defined as the heat released during condensation divided by the work done during compression; compute it. 1. We have a compression-evaporation heat pump which contains 4 mol of a diatomic ideal gas with 5 degrees of freedom. (a) The gas is first compressed adiabatically from a pressure of 1.5 MPa at T 40C to a pressure of 4 MPa at T = 120C. Compute the work done on the gas in this process. = (b) The gas is then allowed to cool at constant pressure down to a temperature T3 Compute the work done on the gas and the heat released by the gas in this process. = 80C. (c) At this pressure and temperature the gas can condense into its liquid form with a latent heat of 920 J-g-. If the molecular weight of this substance is 17g mol, compute the heat released during condensation. (d) Finally, the liquid is then allowed to expand to reach its original pressure and temperature, where it will evaporate and return to its original state. The coefficient of performance of this cycle is defined as the heat released during condensation divided by the work done during compression; compute it.
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Related Book For
Introduction to Chemical Engineering Thermodynamics
ISBN: 978-0071247085
7th edition
Authors: J. M. Smith, H. C. Van Ness, M. M. Abbott
Posted Date:
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