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Calculate the Change in the Standard Molar Entropy of Sulfur

Question 3

Multiple Choice

Calculate the change in the standard molar entropy of sulfur trioxide gas, SO3, when it is cooled from a temperature of 100 °C to 10 °C at a constant pressure of 1 bar. The standard molar constant-pressure heat capacity of sulfur trioxide is 50.1 J K-1 mol-1.


A) +7.81 J K-1 mol-1
B) -13.8 J K-1 mol-1
C) -115 J K-1 mol-1
D) -6.01 J K-1 mol-1

Correct Answer:

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