Chemical Thermodynamics

This is a branch of physical chemistry, which deals with heat changes between the system and surroundings.

Some Terms Used in Thermodynamics

System – It is the part of the universe, which is taking for thermodynamics studies. It can be open, closed or isolated.

Surroundings – It is all the factors, which are found outside the system.

Boundary – It is what separates the system from the surroundings.

Enthalpy – It is the heat content of a given system. It is represented by ΔH.

Free Energy– It is the energy available for useful work. It is represented by ΔG. ΔG = ΔH – TΔS.

Entropy– It is the degree of randomness or disorderliness of a system. It is represented by ΔS.

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