Heat Engines: a Certain Engine Extracts 1300 J of Heat

question 29

Multiple Choice

Heat engines: A certain engine extracts 1300 J of heat from a hot temperature reservoir and discharges 700 J of heat to a cold temperature reservoir. What is the efficiency of this engine?

• A) 46%
• B) 54%
• C) 86%
• D) 27%
• E) 13%

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Definitions:

Moon Phase

The appearance of the illuminated portion of the moon as seen from Earth, which changes in a cyclical pattern.

Time Duration

The interval between the beginning and the end of an event, process, or activity.

Consciousness

The quality or state of being aware of an external object or something within oneself.

Subjective Experience

Subjective experience refers to the personal perceptions and feelings that are unique to an individual, not observable by others.