A Refrigerator Uses 40 J of Work to Extract Heat $^{\circ}$

question 38

Multiple Choice

A refrigerator uses 40 J of work to extract heat from a heat reservoir at 0.00 $^{\circ}$ C.If the coefficient of performance of the refrigerator is 2.1,then how much heat is extracted from the heat reservoir at 0.00 $^{\circ}$ C?

• A) 48 J
• B) 65 J
• C) 84 J
• D) 90 J

---

Definitions:

Differential Aptitude Test (DAT)

A standardized test designed to assess an individual's potential to succeed in various academic and vocational areas.

Mathematics

A broad area of study concerning numbers, quantities, shapes, and patterns along with the logical operations and relationships between them.

Achievement Test

An examination designed to measure a person's knowledge, skills, or accomplishment in a particular area or subject.

Aptitude Test

A standardized test designed to measure a person's ability to acquire skills or knowledge in a specific domain or area.