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

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Definitions:

Explicit Costs

Payments made directly to individuals or entities in the operation of a business, including salaries, rental fees, and costs of materials.

Average Variable Cost

The total variable cost divided by the number of units produced, representing the average cost per unit of output that varies with production.

Average-Fixed-Cost Curve

A graphical representation that shows the average fixed costs of production at different levels of output.

Average-Total-Cost Curve

Graphical representation that shows how the average total costs of production change as the quantity of output is altered.