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:

Secretaries

Administrative officials responsible for managing the day-to-day operations of an office or organization.

Receptionists

Front desk workers who manage client reception and administrative tasks, often encountered as the first point of contact in offices.

Support Personnel

Individuals who provide various forms of assistance within a legal setting but are not attorneys, including paralegals, legal secretaries, and clerks.

Secretaries

Administrative professionals who perform tasks such as scheduling, correspondence, and file management, often playing a crucial role in law offices and legal settings.