A Heat Pump Has a Coefficient of Performance of 4

question 7

Multiple Choice

A heat pump has a coefficient of performance of 4. If the heat pump absorbs 20 kJ of heat from the cold outdoors in each cycle, the heat expelled (in kJ) to the warm indoors is:

• A)34
• B)27
• C)36
• D)40
• E)80

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Definitions:

Decrease

A reduction or decline in quantity, size, or overall value of an item or entity.

Investing Activity

Transactions involving the purchase and disposal of long-term assets and other investments, not including cash equivalents, part of a company’s cash flow statement.

Other Income

Revenue from non-primary business activities, such as rent, patents, or interest earnings, not related to the company's main business operations.

Gain on Sale

The profit realized when an asset is sold for a price higher than its book value.