Kirchhoff formula

Kirchhoff formula

[′kərk‚hōf ‚fȯr·myə·lə]
(thermodynamics)
A formula for the dependence of vapor pressure p on temperature T, valid over limited temperature ranges; it may be written log p = A- (B / T) -C log T, where A, B, and C are constants.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.