Wednesday 6 August 2014

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WHAT ARE THE TYPES OF THERMODYNAMIC EQUILIBRIUM

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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