A Heat Engine Operates Between a Hot Reservoir at 1500

question 57

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.
-What is the actual efficiency of this engine?

• A)0.15
• B)0.34
• C)0.50
• D)0.67
• E)0.81

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Definitions:

Central Tendency

A measure that represents the center point or typical value of a dataset.

Average

A statistical measure that determines the central tendency of a set of numbers by dividing the sum of all numbers by the count of the numbers.

Outliers

Those scores in a distribution that are noticeably much more extreme than the majority of scores. Whether a score is an outlier or not is usually an arbitrary decision made by the researcher.

Percentile

A measure indicating the value below which a given percentage of observations in a group of observations falls.