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  3. 2.15 mol of an ideal gas with cv,m=3r/2 undergoes

2.15 mol of an ideal gas with CV,m=3R/2 undergoes the transformations described in the following list...

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Chemistry

2.15 mol of an ideal gas with CV,m=3R/2undergoes the transformations described in the following list froman initial state described by T=350.K andP=5.00bar.

1) The gas undergoes a reversible adiabatic expansion until thefinal pressure is one-fourth its initial value.

2) The gas undergoes an adiabatic expansion against a constantexternal pressure of 1.25 bar until the final pressure isone-fourth its initial value.

3)The gas undergoes an expansion against a constant externalpressure of zero bar until the final pressure is equal toone-fourth of its initial value.

a) Calculate q for each process. (q1,q2,q3)

b) Calculate w for each process. (w1,w2,w3)

c) Calculate ΔU for each process. (ΔU1,ΔU2, ΔU3)

d) Calculate ΔH for each process. (ΔH1,ΔH2, ΔH3)

e) Calculate ΔS for each process. (ΔS1,ΔS2, ΔS3)

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