A Refrigerator Has a Coefficient of Performance Equal to 4

question 15

Multiple Choice

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

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

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Definitions:

High Level Concepts

Abstract ideas or notions that are complex and encompass broad categories or ideas, which oftentimes require significant understanding and knowledge to grasp.

Lower-Level Concepts

Basic or fundamental ideas and categories that are simpler and more concrete, serving as the foundational elements for more complex understanding.

Heuristics

Mental shortcuts or rules of thumb that simplify decision-making, often based on past experience and perceived patterns.

Algorithms

A process or set of rules to be followed in calculations or other problem-solving operations, especially by a computer.