Definition -
When a system interacting with its surrounding stops exchange of energy and matter with its surrounding , it is called in the state of thermodynamic equilibrium .
TYPES OF THERMODYNAMIC EQUILIBRIUM -
There are many types of thermodynamic equilibrium -
- Mechanical equilibrium
- Thermal equilibrium
- Chemical equilibrium etc
Mechanical equilibrium -
A state of mechanical equilibrium is that state in which it experience no pressure or elastic stress within it and there is no unbalanced force between the system and surrounding .
Thermal equilibrium -
In the state of thermal equilibrium of the system , there is no exchange of heat energy between the system and surrounding . Such a state is characterized by same value of the temperature of the system and surrounding .
Chemical equilibrium -
In the state of chemical equilibrium system does not undergo a spontaneous change in its internal composition i.e no chemical reaction takes place in it and no transfer of matter takes place from one
part of it to another part .
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