A Heat Engine Having the Maximum Possible Efficiency Has an Efficiency

question 210

Multiple Choice

A heat engine having the maximum possible efficiency has an efficiency of 35.0% when operating between two heat reservoirs. If the temperature of the hot reservoir is 700 K, what is the
Temperature of the cold reservoir?

• A) 455 K
• B) 200 K
• C) 350 K
• D) 600 K
• E) 245 K

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Definitions:

Viscous Lava

Lava that is thick and slow-moving due to its high silica content, which increases its viscosity.

Scoria Cone

A type of volcanic cone formed from fragments of lava ejected from a single vent, characterized by its steep sides and often associated with basaltic lava flows.

Soil And Plants

The interdependent relationship between soil and plant life, where soil provides nutrients, water, and support for plants, and plants contribute to soil health and structure.

Darker Lava

Typically refers to basalt, which is a dark-colored volcanic rock that results from the cooling of magnesium and iron-rich lava.