A Refrigerator Uses 40

question 4

Multiple Choice

A refrigerator uses 40.0 J of work to extract 90.0 J from a heat reservoir at 0.00°C. What is the coefficient of performance for the refrigerator?

• A) 1.60
• B) 2.05
• C) 2.25
• D) 2.85

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Definitions:

February

The second month of the year in the Gregorian calendar, typically consisting of 28 days, except in leap years when it has 29 days.

Weighted-Average Method

A cost-flow accounting method that averages the cost of goods available for sale and assigns an averaged cost to both ending inventory and cost of goods sold.

FIFO Method

A method of inventory valuation where the first items placed in inventory are the first ones to be used or sold.

Mixing Department

A specific section within a manufacturing facility where raw materials are combined to produce a homogeneous product.