A Carnot Refrigerator Has a Coefficient of Performance = 2

question 9

Multiple Choice

A Carnot refrigerator has a coefficient of performance = 2.5. The refrigerator consumes 50 W of power. How much heat is removed from the interior of the refrigerator in 1 hour?

• A)7.5 kJ
• B)4.5 × 10⁵ J
• C)1.8 × 10⁵ J
• D)7.2 × 10⁵ J
• E)72 kJ

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Definitions:

Restricts Trade

Actions or policies implemented by governments or economic entities to limit or control the exchange of goods and services across borders.

Specialization of Production

The process in which individuals, firms, or countries focus on producing a limited range of goods or services to gain economies of scale or advantages by virtue of unique skills, resources, or technology.

Economic Wealth

The accumulation of valuable resources and assets, including money, property, and investments, that contribute to an individual's or nation's economic power and living standard.

Economic Freedom

The ability of individuals to make their own economic decisions, including the decisions to buy, sell, and produce, with minimal government intervention.