What is Thermodynamics?

What is Thermodynamics:

    ◨ Thermodynamics is the science that deals with the conversion of heat into mechanical energy. 
    ◨ It is based upon observations of common experience, which have been formulated into thermodynamics laws. 
    ◨ These laws govern the principles of energy conversion. 
    ◨ The applications of the thermodynamic law and principles are found in all fields of energy technology, notably in steam and nuclear power plants, internal combustion engines, gas turbines, air conditioning, refrigeration, gas dynamics, jet propulsion, compressors, chemical process plants and direct energy conversion devices.

Generally thermodynamics contains four laws;
    ◨ Zeroth law: deals with thermal equilibrium and establishes a concept of temperature.
    ◨ The first law: throws light on concept of internal energy.
    ◨ The Second law: indicates the limit of converting heat into work and introduces the principles of increase of entropy.
    ◨ The third law: defines the absolute zero of entropy.

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