Two Ideal Carnot Heat Engines Have the Same Efficiency $5.0 \times 10 ^ { 2 } \mathrm {~K}$

question 35

Multiple Choice

Two ideal Carnot heat engines have the same efficiency. One operates between $5.0 \times 10 ^ { 2 } \mathrm {~K}$ and $3.0$ $\times 10 ^ { 2 } \mathrm {~K}$ , and the other between $4.0 \times 10 ^ { 2 } \mathrm {~K}$ and some lower temperature. What is the lower temperature?

• A) \(280 \mathrm {~K}\)
• B) \(240 \mathrm {~K}\)
• C) \(200 \mathrm {~K}\)
• D) \(220 \mathrm {~K}\)
• E) \(260 \mathrm {~K}\)

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Definitions:

Direct Labor Costs

The expenses associated with the wages of employees who are directly involved in the production or manufacturing of goods or services.

Predetermined Overhead Rate

A rate used to allocate manufacturing overhead costs to products or job orders based on a projected activity level.

General Ledger

The main accounting record of a company that uses double-entry bookkeeping, containing all the financial accounts and statements.

Predetermined Overhead Rate

An estimated overhead rate used to allocate manufacturing overhead costs to products based on a planned activity level.