Describe the working of a refrigerator as a heat pump. Derive an expression for its coefficient of performance.

Derive an expression for pressure- volume work.

Working coefficient of refrigerator is

Derive an expression for work done in an adiabatic process.

Define coefficient of performance of a refrigerator.

Define adiabatic process. Derive an expression for work done during adiabatic process.

A Carnot heat engine has an efficiency of 10% . If the same engine is worked backward to obtain a refrigerator, then find its coefficient of performance.

Define enthalpy of fusion. Derive an expression for the maximum work.