A refrigerant should have low latent heat

If operating temperature of system is low, then refrigerant with low boiling point should be used

Precooling and subcooling bf refrigerant are same

Superheat and sensible heat of a. refrigerant are same

bigger

smaller

equal

smaller/bigger depending on capacity

ineffective refrigeration

high power consumption

freezing automatic regulating valve

corrosion of whole system

it permits higher speeds to be used

it permits complete evaporation in the evaporator

it results in high volumetirc and mechanical efficiency

all of the above

Temperature of medium being cooled must be below that of the evaporator

Refrigerant leaves the condenser as liquid

All solar thermally operated absorption systems are capable only of intermittent operation

frost on evaporator reduces heat transfer