A familiar example of the stickiness of water occurs when you drink water through a straw â a process thatâs very similar to the method plants use to pull water through their bodies. You apply suction at the top of the straw, and the water molecules move toward your mouth.
Types of refrigerants. Chlorofluorocarbons (CFCs) These are refrigerants that contain Chlorine, Fluorine and Carbon. They were developed in the 1930's and were used in a variety of industrial, commercial, household and automotive applications.
It has been proved that CFCs are a major cause of depletion of the earthâs stratospheric ozone layer and contribute to the greenhouse effect (global warming). Presently large quantities of CFCs are being used as refrigerants in a number of refrigerating and air-conditioning systems. Though the refrigerant moves in a closed cycle, there are lots of leakages that escape to the atmosphere and cause destruction of the ozone layer.