An airtight freezer holds n moles of air at 273degc and 100, Ask an Expert

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An airtight freezer holds n moles of air at 27.3°C and 1.00 atm. The air is then cooled to -20.7°C.

(a) What is the change in entropy of the air if the volume is held constant?

(b) What would the entropy change be if the pressure were maintained at 1.00 atm during the cooling?

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