A Refrigerator Has a Coefficient of Performance 4

question 54

Multiple Choice

A refrigerator has a coefficient of performance 4.0.How much heat is exhausted to the hot reservoir when 400 kJ of heat are removed from the cold reservoir?

• A)500 kJ
• B)400 kJ
• C)100 kJ
• D)80 kJ
• E)Not enough information is given to answer this question.

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Definitions:

One-tailed Test

A statistical test in which the region of rejection is on only one side of the sampling distribution, used when predicting the direction of a potential difference or relationship.

Sample Size

The number of observations or subjects selected from a population for a study.

T Distribution

A statistical distribution used when the sample size is small and the population standard deviation is unknown.

One-tailed Test

A hypothesis test in which the region of rejection is on only one side of the sampling distribution, used when assessing the direction of a relationship.