Equilibrium Constant

Science / Chemistry / Equilibrium Constant: The product of the concentrations of the products, divided by the product of the concentrations of the reactants, for a chemical reaction at equilibrium. For example, the equilibrium constant for A + B = C + D is equal to [C][D] / ([A][B]), where the square brackets indicate equilibrium concentrations. Each concentration is raised to a power equal to its stoichiometric coefficient in the expression. The equilibrium constant for A + 2B = 3C is equal to [C]3/([A][B]2). For gas phase reactions, partial pressures can be used in the equilibrium constant expression in place of concentrations.

Other Words for Constant

Constant Adjective Synonyms: incessant, unceasing, ceaseless, perpetual, persistent, uninterrupted, steady, regular, invariable, unremitting, unvarying, relentless, unrelenting, continuous, continual, unending, endless, never-ending, non-stop, perennial, eternal, everlasting
Constant Noun Synonyms: resolute, immovable, steadfast, firm, dependable, unshakeable or unshakable, determined, unswerving, undeviating, persevering, unwearying, unwearied, untiring, indefatigable, tireless, unflagging, unwavering, unfailing, unfaltering, persistent, loyal

Base Hydrolysis Constant

Science / Chemistry / Base Hydrolysis Constant: The equilibrium constant for the hydrolysis reaction associated with a base. For example, Kb for ammonia is the equilibrium constant for NH3(aq) + H2O(ell) doublearrow NH4+(aq) + OH-(aq), or Kb = [NH4 MORE

Acid Dissociation Constant

Science / Chemistry / Acid Dissociation Constant: (Ka) acid ionization constant. Compare with base hydrolysis constant. The equilibrium constant for the dissociation of an acid into a hydrogen ion and an anion. For example, the acid dissociation cons MORE

Fast Time Constant (FTC) Circuit

Technology / Radar / Fast Time Constant (FTC) Circuit: An electronic circuit designed to reduce the undesirable effects of clutter. With the ftc circuit in operation, only the nearer edge of an echo having a long time duration is displayed on the radarsco MORE