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2.25 moles of an ideal gas with Cv,m = 5R/2 are transformed irreversibly from an initial...

2.25 moles of an ideal gas with Cv,m = 5R/2 are transformed irreversibly from an initial
state T = 680 K and P = 1.15 bar to a final state T= 298 and P= 4.75 bar.
a) Calculate ΔU, ΔH, and ΔS for this process.
b) Calculate ΔU, ΔH, and ΔS for this process was reversible.

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