A Glass Thermometer Using a Thin Column of Ethyl Alcohol

question 22

Multiple Choice

A glass thermometer using a thin column of ethyl alcohol at room temperature (293.0 K) is cooled. When the temperature reaches 273.0 K the column of alcohol is 15.50 cm high. How tall was it when the temperature was 293.0 K? The coefficient of volume expansion of ethyl alcohol is 1,120 × 10⁻⁶ K⁻¹.

• A) 15.85 cm
• B) 15.68 cm
• C) Cannot answer without knowing the diameter of the column
• D) 15.62 cm

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Definitions:

Variable Costs

Expenses that vary directly with the amount of activity or output in a company.

Financial Advantage

The benefit obtained by a business from its financial decisions and strategies.

Fixed Manufacturing Overhead

Costs related to manufacturing that do not change with the level of production, such as salaries of supervisors and rent for factory space.

Contribution Margin

The difference between sales revenue and variable costs of production, indicating how much revenue contributes towards covering fixed costs and generating profit.