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Thermodynamic System:
It is that part of the universe which is under
consideration. There are following types of
thermodynamics systems.
·
Open system:
In this types of system the transfer of energy
as well as the mass takes place between the
system and the surroundings. eg. Air compressor.
·
Closed system:
In closed system there is no transfer of mass
across the boundary but the transfer of energy
may take place between the system and the
surroundings. eg. Piston-cylinder arrangement.
·
Isolated system:
This system is completely isolated from their
environment. In this system neither the energy
nor the mass is transferred between system and
the surroundings takes place. eg. Fluid
contained in a thermos flask.
Surroundings:
Space or matter outside of a thermodynamic
system is called surroundings or environment.
Boundary:
The envelope which separates the thermodynamic
system and surroundings is called boundary.
Universe:
The system and the surroundings together form a
universe |
