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Thermodynamics (Part 3)

Thermodynamic Equilibrium

A system is said to be under thermodynamic equilibrium when none of the state variables are changing and it satisfies the given three equilibriums :-


1. Mechanical Equilibrium


There is no mechanical motion and the pressure and the volume of the system is not changing.


2. Thermal Equilibrium


There is no flow of heat and the temperature of the system does not change with time.


3. Chemical Equilibrium


If any chemical reaction is taking place in the system then the rate of forward reaction is equal to the rate of backward reaction which means that the total number of moles in the system is constant.

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