Fundamental principle of refrigeration is based on the ______________ law of thermodynamics?

A. It is exothermic
B. It is isenthalpic
C. It takes place isothermally
D. It takes place at constant volume

A. At low temperature and high pressure
B. At standard state
C. Both A. and B
D. In ideal state

A. Pressure
B. Volume
C. Temperature
D. All A , B. and C

A. (∂T/∂V)S, ni = -(∂P/∂S)V, ni
B. (∂S/∂P)T, ni = (∂V/∂T)P, ni
C. (∂S/∂V)T, ni = (∂P/∂T)V, ni
D. (∂T/∂P)S, ni = (∂V/∂S)P, ni

A. Isothermal compression
B. Isothermal expansion
C. Adiabatic expansion
D. Adiabatic compression