A Heat Engine Operating at Maximum Efficiency Has an Efficiency

question 49

Multiple Choice

A heat engine operating at maximum efficiency has an efficiency of 25%. The temperature of the cold reservoir is 300 K. What is the temperature of the hot reservoir?

• A) 350 K
• B) 375 K
• C) 400 K
• D) 450 K
• E) 500 K

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Definitions:

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McCarthy Era

A period in the early 1950s in the United States characterized by heightened fears of communist influence and widespread accusations of subversion and treason.

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A social theory favoring freedom of action for individuals over collective or state control.