A Refrigerator Has a Coefficient of Performance Equal to 4

question 15

Multiple Choice

A refrigerator has a coefficient of performance equal to 4.2.How much work must be done on the operating gas in the refrigerator in order to remove 250 J of heat from the interior compartment?

• A)60 J
• B)120 J
• C)250 J
• D)480 J
• E)1050 J

---

Definitions:

Membership Approval

The process through which applicants are accepted as members of a group, organization, or club, often following specific criteria for admission.

Budgeted Amount

The estimated financial performance or financial position for a specific period based on expected revenues, expenses, assets, or liabilities.

Variable Overhead

Costs that fluctuate with the level of production or activity, such as utilities and raw materials expenditures.