A Heat Engine Having the Maximum Possible Efficiency Has an Efficiency

question 459

Multiple Choice

A heat engine having the maximum possible efficiency has an efficiency of 25% when operating between two heat reservoirs. If the temperature of the cold reservoir is 300 K, what is the
Temperature of the hot reservoir?

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

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Definitions:

Suspicious

Characterized by or indicative of suspect or lack of trust.

PCP

A dissociative drug, also known as phencyclidine, that can induce hallucinations, distortions in perceptions, and is used illicitly.

Barbiturates

A class of drugs previously used for anxiety, insomnia, and seizure control, but now less common due to the risk of dependency and overdose.

Knowledge-Management Systems

Specialized systems designed to capture, organize, and distribute knowledge within an organization to improve efficiency, creativity, and innovation.