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.
Diamond (C) is one weâve all heard of and is the centerpiece of most engagement rings. As noted in the chemical composition, diamonds are pure carbon arranged in a diamond lattice, which accounts for itâs incredible strength and durability. Diamonds are found in cooled kimberlites that formed over the course of 1 to 3 billion years. 4.