A Reversible Refrigerator Operates Between a Low Temperature Reservoir at T_C

question 31

Multiple Choice

A reversible refrigerator operates between a low temperature reservoir at T_C and a high temperature reservoir at T_H. Its coefficient of performance is given by:

• A) (T_H - T_C)/T_C
• B) T_C/(T_H - T_C)
• C) (T_H - T_C)/T_H
• D) T_H/(T_H - T_C)
• E) T_H(T_H + T_C)

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Definitions:

Government Purchases

Spending by the government on goods and services that are directly consumed or invested in by the government sector.

Short-Run Aggregate Supply

The total production of goods and services in an economy at different price levels in a short time frame, assuming that some production costs remain fixed.

Spending Multiplier

The ratio of a change in national income to a change in government spending that causes it, indicating the impact of fiscal policy on the economy.

Long Run

A period of time in economics where all factors of production and costs are variable, and all market adjustments have been made.