Supose you have one mole of an ideal gas T1=300k in a container and you want to

Question

Supose you have one mole of an ideal gas T1=300k in a container and you want to compress it isothermally by a constant external pressure (Pext). The end of the compression process is achieved when P2=Pext. This, tehn, is a irreversible process. The initial and final volumes are V1=25L and V2=10L, repectively. If the temperature of the surroundings is 300K, then calculate dSsurr, dSsys, and dStotal in units J/K. Prove that a decrease in the entropy change of the universe will never be obseve because dStotal=>0

Explanation / Answer

As we know that

DeltaS = NR*ln(V2/V1)

= 1*8.314*ln(25/10)

= 7.618

Delta System= - 7.618

dStotal = 0

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