Chosen value of molality and usually equal to \(1\ \text{mol}\ \text{kg}^{-1}\).
Source: Green Book, 2
nd ed., p. 54 [
Terms] [
Book]
See also: PAC, 1994,
66, 533. (
Standard quantities in chemical thermodynamics. Fugacities, activities and equilibrium constants for pure and mixed phases (IUPAC Recommendations 1994)) on page 538 [
Terms] [
Paper]