A Heat Engine Operates Between a Hot Reservoir at 1500

question 66

Multiple Choice

A heat engine operates between a hot reservoir at 1500 K and a cold reservoir at 500 K.During each cycle,1.0 × 10⁵ J of heat is removed from the hot reservoir and 5.0 × 10⁴ J of work is performed.
-If the coefficient of performance for a refrigerator is 5.0 and 72 J of work are done on the system,how much heat is rejected to the room?

• A)390 J
• B)430 J
• C)360 J
• D)310 J
• E)530 J

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Definitions:

Growth Center

Regions in an organism or tissue that are the primary sites of growth or cell proliferation.

Epithelial Tissue

A type of tissue that lines the outer surfaces of organs and blood vessels, as well as the inner surfaces of cavities in many internal organs.

Hormones

Chemical messengers produced by glands in the body that regulate physiological activities and behavioral responses.

Gases

Substances that exist in a state that has no fixed shape and adapts to the volume of its container, characterized by low density and viscosity.