The expression for the work done for a reversible polytropic process can be used to obtain the expression for work done for all processes, except reversible _____________ process?

A. Adiabatic
B. Isothermal
C. Isometric
D. None of these

A. Pressure must be kept below 5.2 atm
B. Temperature must be kept above – 57°C
C. Pressure must be kept below 5.2 atm. and temperature must be kept above 57°C
D. Pressure and temperature must be kept below 5.2 atm. and – 57°C respectively

A. Joule-Thomson co-efficient
B. Specific heat at constant pressure (Cp)
C. co-efficient of thermal expansion
D. Specific heat at constant volume (CV)

A. More than
B. Less than
C. Equal to
D. Data insufficient, can’t be predicted

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

A. Enhanced COP
B. Decreased COP
C. No change in the value of COP
D. Increased or decreased COP; depending upon the type of refrigerant