State the mathematical relation between the coefficient of performance (COP) of a…

PHYSICS · Subjective · A Level · Physics · Engineering physics · Engineering physics

Problem

State the mathematical relation between the coefficient of performance (COP) of a heat pump,

\text{COP}_{\text{HP}}

, and that of a refrigerator,

\text{COP}_{\text{ref}}

, when the same device operates between the same two temperature reservoirs.