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.
Most Common Colored Diamond. A naturally colored diamond expresses the individuality and confidence of the person who wears it. The most abundant of all fancy colored diamonds, yellow diamonds, symbolize joy, imagination and energy. Most gemstone quality diamonds are colorless, with a color grading ranging from D-Z.