A Refrigerator Has a Coefficient of Performance of 4

question 21

Multiple Choice

A refrigerator has a coefficient of performance of 4. If the refrigerator absorbs 30 cal of heat from the cold reservoir in each cycle, the heat expelled (in cal) into the heat reservoir is

• A) 40.5
• B) 37.5
• C) 36.5
• D) 34.5
• E) 22.5

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Definitions:

Households

Units consisting of one or more people who live in the same dwelling and share meals or living accommodation; considered as a single entity for economic analysis.

Satisfaction

The feeling of fulfillment or pleasure derived from achieving a goal, satisfying a desire, or meeting a need.

Service Sector

The segment of the economy that provides intangible goods or services to consumers, including healthcare, education, financial services, and retail.

Labor Force

A rephrased definition: This consists of all working-age individuals who are currently employed or actively seeking employment.