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thermodynamics law comparison table
Subject has definition has synonym is a kind of is an instance of
first law of thermodynamicsThe law of conservation of energy  thermodynamics law
gas law  thermodynamics law 
second law of thermodynamicsLaw stating that total entropy always increases.  thermodynamics law
third law of thermodynamicsAll substances have zero entropy at 0 K.Nernst theorem thermodynamics law
virial theoremFor a bound gravitational system the long-term average of the kinetic energy is one-half of the potential energy.  thermodynamics law
zeroth law of thermodynamicsThe temperature of a body in equilibrium is the same at all points.law of thermal equilibrium thermodynamics law

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