Problem: Predict how the entropy of the substance is affected in the following processes: a) Ar(l) → Ar(g) b) I2(g, 1 bar, 125°C) → I2(g, 1 bar, 200°C) c) H2O(g, 75 Torr, 300 K) → H2O(g, 150 Torr, 300 K)

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We are asked to identify how the entropy of the substance is affected in the following processes: 


Analyze each: 

a) Ar(l) → Ar(g) 

  • Phase change from liquid to gas


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Problem Details

Predict how the entropy of the substance is affected in the following processes: 


a) Ar(l) → Ar(g) 

b) I2(g, 1 bar, 125°C) → I2(g, 1 bar, 200°C) 

c) H2O(g, 75 Torr, 300 K) → H2O(g, 150 Torr, 300 K)

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