A Heat Engine Operates Between a Hot Reservoir at 1500

question 66

Multiple Choice

A heat engine operates between a hot reservoir at 1500 K and a cold reservoir at 500 K.During each cycle,1.0 × 10⁵ J of heat is removed from the hot reservoir and 5.0 × 10⁴ J of work is performed.
-If the coefficient of performance for a refrigerator is 5.0 and 72 J of work are done on the system,how much heat is rejected to the room?

• A)390 J
• B)430 J
• C)360 J
• D)310 J
• E)530 J

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Definitions:

Capital Asset

An asset of any kind owned for investment or personal purposes, not usually sold in the course of business.

Household Furnishings

Items and accessories used for decorating and living in a home, such as furniture, rugs, and appliances.

Business Inventory

Items that are held for sale in the ordinary course of business, representing a current asset on a company's balance sheet.

Section 1231 Property

Business property that combines features of capital assets and depreciable property, potentially offering favorable tax treatment on gains.