Laws of thermodynamics

    1st Law:

            The first law of thermodynamics, also known as Law of Conservation of Energy, states that energy can neither be created nor destroyed; energy can only be transferred or changed from one form to another.

       2nd Law:

            Clausius statement- It is impossible to convert heat from a lower-body temperature to higher body temperature without applying for the external work.

       3rd Law:
             The third law of thermodynamics states that the entropy of a system approaches a constant value as the temperature approaches absolute zero.

        Zeroth Law:

               It states that if two thermodynamic systems are each in thermal equilibrium with the third one then they are equilibrium with each other.

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