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:

Science And Technology Studies

An interdisciplinary field that examines how social, cultural, and political conditions shape scientific research and technological innovation and how these, in turn, affect society.

Actor-Network Theory

A theoretical and methodological approach in social sciences that treats both human and non-human entities as equally important actors in the creation and maintenance of social networks.

Premodernity

A period in history characterized by the absence of modern technology and ideas, often demarcated before the development of industrial societies.

Postmodernity

A cultural, intellectual, or artistic state lacking a clear central hierarchy or organizing principle, breaking with classical and modernist concepts, often emphasizing skepticism and relativism.