259) The condition of refrigerant after passing through the condenser in a vapour compression system is

260) The leakage in a refrigeration system using freon is detected by

261) If the condenser temperature is kept constant, the coefficient of performance of a refrigeration cycle increases with the increase in evaporator temperature.

262) The process of heat transfer from one particle of the fluid to another by the actual movement of the fluid particles caused by some mechanical means, is known as

263) When ? is absorptivity, ? is reflectivity and ? is transmittivity, then for a diathermanous body,