lowers evaporation temperature

increases power required per ton of refrigeration

lowers compressor capacity because vapour is lighter

all of the above.

condenser

evaporator

absorber

condenser, absorber and separator (rectifier).

same

more

less

more or less depending on ambient conditions

increase

decrease

may increase or decrease depending on the type of refrigerant used

remain unaffected

Freon-12

NH3

C02

Freon-22