A Heat Engine Exhausts 3 000 J of Heat While

question 68

Multiple Choice

A heat engine exhausts 3 000 J of heat while performing 1 500 J of useful work.What is the efficiency of the engine?

• A)15%
• B)33%
• C)50%
• D)60%

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Definitions:

User Cost

The economic cost of using a good or service, including the opportunity cost of not having the good available for future use.

Extraction Cost

The expenses associated with the removal of resources or raw materials from the earth, such as mining, drilling, or quarrying.

Quantity of Gold Bars

The quantity of gold bars represents the physical amount of gold, measured in bars, that an entity possesses or trades.

User Cost

The cost of using a good or service, including the cost of foregone opportunities.