A Certain Engine Extracts 1300 J of Heat from a Hot

question 18

Multiple Choice

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:

Physiologic Changes

Alterations in the normal functions of the body, which may occur due to development, aging, or pathology.

Weight Change

An alteration in a person's body weight, which can be a loss or gain, resulting from various factors like diet, exercise, health conditions, or stress.

Tiredness

A feeling of a lack of energy or exhaustion that can result from physical exertion, lack of sleep, stress, or underlying health conditions.

Hair Loss

The thinning or loss of hair on the scalp or body, which can be due to various factors including genetics, stress, disease, or medication side effect.