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Calculate the Entropy Change △vapS∘\triangle_{vap} S^{∘} , J K-1 Mol-1) When 1

Question 17

Multiple Choice

Calculate the entropy change ( △vapS∘\triangle_{vap} S^{∘} , J K-1 mol-1) when 1.00 mol of ethanol at its boiling point (Tb =78.45 °C) vaporizes (in the process the temperature does not change, △vapH∘\triangle_{vap} H^{∘} for ethanol is + 43.5 kJ mol-1) .


A) + 124.
B) - 124.
C) + 554.
D) + 0.12.

Correct Answer:

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