A Vessel Containing 5

question 18

Multiple Choice

A vessel containing 5.0 kg of water at 10°C is put into a refrigerator. The 1/7 HP motor (1 HP = 746 W) runs for 5.0 minutes to cool the liquid to the refrigerator's low temperature, 0°C. What is the COP of the refrigerator?

• A)5.7
• B)4.6
• C)6.5
• D)7.2
• E)3.6

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Definitions:

Stoics

Adherents of Stoicism, an ancient Greek philosophy that teaches the development of self-control and fortitude as a means of overcoming destructive emotions.

Preconceived

Ideas, opinions, or judgments formed in advance without adequate evidence or experience.

Psychological Hedonist

Someone who believes that the pursuit of pleasure is the most important motivation for human actions.

Only Pleasure

The concept that the pursuit of pleasure is the most important goal or the only source of moral value.