An Ideal Carnot Refrigerator with a Performance Coefficient (COP)of 5 $5.0 ^ { \circ } \mathrm { C }$

question 5

Multiple Choice

An ideal Carnot refrigerator with a performance coefficient (COP) of 5.0 cools items inside of it to $5.0 ^ { \circ } \mathrm { C }$ What is the high temperature needed to operate this refrigerator?

• A)61° C
• B)1395° C
• C)6° C
• D)30° C

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Definitions:

Saving

The portion of income not spent on consumption, often put aside for future use or investment.

Disposable Income

The amount of money an individual or household has available to spend or save after income taxes have been deducted.

Disposable Income

Money that becomes available for household savings and expenditures after income taxes are subtracted.

MPS

Marginal Propensity to Save, which is the proportion of an increase in income that is saved rather than spent on consumption.