[´ē·kwǝ`lib·rē·ǝm ´kän·stǝnt]
CHEMISTRY A constant at a given temperature such that when a reversible chemical reaction cC + bB = gG + hH has reached equilibrium, the value of this constant K0 is equal to
where aG , aH , aC , and aB represent chemical activities of the species G, H, C, and B at equilibrium.