A Refrigerator Has a Coefficient of Performance Equal to 4

question 42

Multiple Choice

A refrigerator has a coefficient of performance equal to 4.2.How much work must be done on the refrigerator in order to remove 250 J of heat from the interior?

• A) 60 J
• B) 120 J
• C) 250 J
• D) 480 J
• E) 1050 J

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Definitions:

Type of Music

A category or genre that classifies music according to shared traditions, characteristics, or conventions.

Grouped Frequency Distribution

The organization of raw data in table form, using classes and frequencies.

Miles Per Gallon

A measure of how far a vehicle can travel on one gallon of fuel, commonly used to assess fuel efficiency.

Type of Automobile

A classification of car based on factors such as body style, size, performance, and market segment.