Open system: A system in which the transfer of ma as well as energy takes place, is known as an open system Air compressor and a balloon containing air are known s an open system.
Closed system: A system in which the mass remains constant (i.e. no transfer of mass) but transfer of energy takes place is known as a closed system. A steel flask with hot water in it is an example of a closed system.
Isolated system: A system in which neither the mass nor energy transfer takes place is known as an isolated system A steel flask with an other casing insulated from the
surroundings is an example of an isolated system.
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