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古momo 發問時間: 社會與文化語言 · 5 年前

化工熱力學

An ideal gas, Cp= (5/2)R and Cv= (3/2)R is changed from P(initial)= 1bar and V(initial)= 12m^3 to P(final)= 12bar and V(final)= 1m^3 by the following mechanically reversible processes: (a) Isothermal compression. (b) Adiabatic compression followed by cooling at constant pressure. (c) Adiabatic compression followed by cooling at constant volume. (d) Heating at constant volume followed by cooling at constant pressure. (e) Cooling at constant pressure followed by heating at constant volume. Calculate Q, W, change in U, and change in H for each of these processes, and sketch the paths of all processes on a single PV diagram.

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