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- third law of thermodynamics
- A formal statement that at the absolute zeroThe minimum possible temperature: 0 K, -273.15 °C, -459.67 °F. of temperatureA physical property that indicates whether one object can transfer thermal energy to another object. the value of the entropyA thermodynamic state function, symbol S, that equals the reversible heat energy transfer divided by temperature; higher entropy corresponds to greater dispersal of energy on the molecular scale. See also standard entropy. of a perfect crystalA solid with a regular polyhedral shape; for example, in sodium chloride (table salt) the crystal faces are all at 90° angles. A solid in which the atoms, molecules, or ions are arranged in a regular, repeating lattice structure. is equal to zero.