An Electrical Generating Plant Operates at a Boiler Temperature of 220

question 24

Multiple Choice

An electrical generating plant operates at a boiler temperature of 220 $\degree$ C and exhausts the unused heat into a nearby river at 18 $\degree$ C.What is the maximum theoretical efficiency of the plant? (0 $\degree$ C = 273 K)

• A)61%
• B)32%
• C)21%
• D)41%

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Definitions:

Marginal Product

The additional output that is produced by adding one more unit of a factor, such as labor or capital.

Bushels

A measure of volume that is used for quantities of grain, fruit, or other produce.

Variable Input

Variable input refers to a production factor that can be adjusted in the short term to increase or decrease production output.

Short Run

A period during which at least one of a firm's inputs is fixed, limiting its capacity to adjust fully to changes in market demand.