| Nernst-Simon statement of the third law of thermodynamics [`nernst `sī·mǝn `stāt·mǝnt ǝv thǝ `thǝrd `lȯ ǝv ´thǝr·mō·dī`nam·iks] THERMODYNAMICS The statement that the change in entropy which occurs when a homogeneous system undergoes an isothermal reversible process approaches zero as the temperature approaches absolute zero. |