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.
black diamond. 1 another name for â carbonado. 2 usually pl a figurative expression for â coal. English Collins Dictionary-English Definition & Thesaurus &nbsp. carbonado [2] n pl, -dos, -does an inferior dark massive variety of diamond used in industry for polishing and drilling, (Also called) black diamond (Portuguese, literally: carbonated). English Collins Dictionary-English Definition & Thesaurus. diamond n 1 a a colourless exceptionally hard mineral (but often tinted yellow, orange, blue, brown, or black by impurities), found in certain igneous rocks (esp. the kimberlites of South Africa).