A Refrigerator Removes Heat from the Freezing Compartment at the Rate

question 16

Multiple Choice

A refrigerator removes heat from the freezing compartment at the rate of 20 kJ and ejects 24 kJ into a room per cycle.How much work is required in each cycle?

• A) 4 kJ
• B) 20 kJ
• C) 22 kJ
• D) 24 kJ
• E) 44 kJ

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Definitions:

Income

The income earned, usually periodically, from labor or investment returns.

Prices

The sum of money anticipated, needed, or provided as payment for an item.

Utility Function

A mathematical representation that ranks preferences over a set of goods and services, showing the level of satisfaction or utility a consumer receives.

Income

Revenue received, on a consistent basis, from occupational or investment sources.