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Helum gas (One mole at ideal gas conditions) undergoes reversible expansion from an initial pressure of 10 bar and 700K to a final pressure of

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Helum gas (One mole at ideal gas conditions) undergoes reversible expansion from an initial pressure of 10 bar and 700K to a final pressure of 2 bar. (a) Calculate Q,W, and U if the Helium gas follows constant volume path. (15 marks) (b) Calculate Q,W,U and H if the Helum gas follows adiabatic path. (25 marks) Given: Speoific heat eapecities: Cp=3.5R;Cv=2.5R and Gas constant, R=8.314molKJ

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