**Science / Chemistry / Antoine Equation:** A simple 3-parameter fit to experimental vapor pressures measured over a restricted temperature range: log P = A - . B, T + C, where A, B, and C are 'Antoine coefficients' that vary from substance to substance. Sublimations and vaporizations of the same substance have separate sets of Antoine coefficients, as do components in mixtures. The Antoine equation is accurate to a few percent for most volatile substances (with vapor pressures over 10 Torr).

Business / Finance / Regression Equation: An equation that describes the average relationship between a dependent variable and a set of explanatory variables. MORE

Technology / Radar / Radar Range Equation (RRE): The radar range equation (rre) relates the range performance of a radar system to other radar components and their characteristics. MORE

Science / Chemistry / Net Ionic Equation: A net ionic equation is an ionic equation with all DEFINE[spectator ions'>spectator ions eliminated. For example, Ag+(aq) + NO3-(aq) + Na+(aq) + Cl-(aq) = agcl(s) + Na+(aq) + NO3-(aq) is an ionic equa MORE