A Refrigerator Has a Coefficient of Performance 4

question 54

Multiple Choice

A refrigerator has a coefficient of performance 4.0.How much heat is exhausted to the hot reservoir when 400 kJ of heat are removed from the cold reservoir?

• A)500 kJ
• B)400 kJ
• C)100 kJ
• D)80 kJ
• E)Not enough information is given to answer this question.

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Definitions:

Overland Trade Route

A path or route used for the transportation of goods and trade over land, as opposed to sea or air, historically significant for economic and cultural exchanges.

Tikal Project

An extensive archaeological effort focusing on the investigation and preservation of Tikal, one of the largest urban centers of the ancient Maya civilization.

Archaeologists

Scientists who study human history and prehistory through the excavation of sites and the analysis of artifacts and physical remains.

Bronze Age

A period in human history marked by the use of bronze tools and weapons, following the Stone Age and preceding the Iron Age.