where p is gas pressure, V is volume, is the number of moles, R is the universal gas constant (= 8.3144 j/(oK mole)), and T is the absolute temperature. The first law of thermodynamics, the conservation of energy, may be written in differential form as. dq = du + p dV.
Definition of DIAMOND for Kids. 1. : a very hard mineral that is a form of carbon, is usually nearly colorless, and is used especially in jewelry. 2. : a flat figure {loz} like one of the surfaces of certain cut diamonds.
noun. 1. gemstone, gem, precious stone, brilliant, ornament, trinket, sparkler (informal), rock (slang) a golden box containing precious jewels. 2. treasure, wonder, prize, darling, pearl, gem, paragon, pride and joy Barbados is a perfect jewel of an island.