An External Heat Source Supplies Heat to a System at a Rate

question 253

Multiple Choice

An external heat source supplies heat to a system at a rate of 187 W as the system does work at a rate of 131 W. At what rate is the internal (thermal) energy of the system changing?

• A) -320 W
• B) -56 W
• C) 190 W
• D) 320 W
• E) 56 W

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Definitions:

Norepinephrine

A neurotransmitter involved in arousal and the regulation of mood, also known as noradrenaline.

Appetite

The natural desire to satisfy a bodily need, especially for food.

Dopamine

A neurotransmitter that plays several important roles in the brain and body, including movement, motivation, and the reinforcement of rewarding behaviors.

Reward System

A motivational tool used within organizations where employees are recognized and rewarded based on their performance or achievements.