Wednesday, May 18, 2011

Zeroth law of thermodynamics

Zeroth Law of Thermodynamics is also known “Law of Thermal Equilibrium”. The law states, “When two bodies are separately in thermal equilibrium with a third body, they in turn are in thermal
equilibrium with each other.”


In order to understand the zeroth law of thermodynamics. Consider two bodies ‘A’ and ‘B’ separately in thermal equilibrium with third body ‘C’ (i.e. bodies A and C have same temperature and bodies B and C have same temperature), then bodies A and B are also in thermal equilibrium with each other.

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