1 kmol of argon gas confined in a cylinder undergoes a change from an initial condition of...

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1 kmol of argon gas confined in a cylinder undergoes a change from an initial condition of 10 bar and 250 K to a final condition of 1 bar and 300 K. The gas follows the equation PV = RT. Given that Cp = 29.10 kJ/kmol-K and CV= 20.78 kJ/kmol-K, determine the changes in internal energy, enthalpy, heat and work requirement.

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