An Ideal Carnot Engine Extracts 529 J of Heat from a High-Temperature

question 21

Multiple Choice

An ideal Carnot engine extracts 529 J of heat from a high-temperature reservoir during each cycle, and rejects $225 \mathrm {~J}$ of heat to a low-temperature reservoir during the same cycle. What is the efficiency of the engine?

• A)0.57
• B)1.35
• C)2.35
• D)0.7

---

Definitions:

Harlem Shake

A viral Internet meme and dance craze that originated in 2013, featuring an excerpt from the song "Harlem Shake" and videos of people dancing in a comedic manner.

Mass Behavior

Similar behaviors engaged in by large groups of people without their necessarily being in the same place.

Contagion Theory

One of the earliest theories of collective action; suggests that individuals who join a crowd can become “infected” by a mob mentality and lose the ability to reason.

Collective Behavior

Behavior that follows from the formation of a group or crowd of people who take action together toward a shared goal.