chemical equilibrium
91Exergy — Available energy redirects here. For the meaning of the term in particle collisions, see Available energy (particle collision) .In thermodynamics, the exergy of a system is the maximum work possible during a process that brings the system into… …
92Acid — This article is about acids in chemistry. For the drug, see Lysergic acid diethylamide. For other uses, see Acid (disambiguation). Acidity redirects here. For the novelette, see Acidity (Novelette). Acids and Bases …
93metamorphic rock — Any of a class of rocks that result from the alteration of preexisting rocks in response to changing geological conditions, including variations in temperature, pressure, and mechanical stress. The preexisting rocks may be igneous, sedimentary,… …
94Enzyme — Biocatalyst redirects here. For the use of natural catalysts in organic chemistry, see Biocatalysis. Human glyoxalase I. Two zinc ions that are needed for the enzyme to catalyze its reaction are shown as purp …
95Conjugate variables (thermodynamics) — For a more general mathematical discussion, see Conjugate variables. Thermodynamics …
96Physical chemistry — is the study of macroscopic, atomic, subatomic, and particulate phenomena in chemical systems in terms of physical laws and concepts. It applies the principles, practices and concepts of physics such as motion, energy, force, time, thermodynamics …
97Hoff, Jacobus Henricus van 't — ▪ Dutch chemist Introduction born Aug. 30, 1852, Rotterdam, Neth. died March 1, 1911, Berlin, Ger. Dutch physical chemist and first winner of the Nobel Prize for Chemistry (1901), for work on rates of chemical reaction, chemical equilibrium, and …
98separation and purification — ▪ chemistry Introduction in chemistry, separation of a substance into its components and the removal of impurities. There are a large number of important applications in fields such as medicine and manufacturing. General principles… …
99Catalysis — Catalyst redirects here. For other uses, see Catalyst (disambiguation). Solid heterogeneous catalysts such as in automobile catalytic converters are plated on structures designed to maximize their surface area …
100catalysis — catalytic /kat l it ik/, adj., n. catalytical, adj. catalytically, adv. /keuh tal euh sis/, n., pl. catalyses / seez /. 1. Chem. the causing or accelerating of a chemical change by the addition of a catalyst. 2. an action between two or more… …
