The critical volume provides data which may be tested for additive relations.
To Landolt is due the proof that, Additive reiations.
Other physical properties of these solutions, such as density, colour, optical rotatory power, &c., like the conductivities, are additive, i.e.
6 1.86 3.01 o 88 1.03 Since at the boiling-point under atmospheric pressure liquids are in corresponding states, the additive nature of the critical coefficient should also be presented by boiling-points.
The molecular volume is additive in certain cases, in particular of analogous compounds of simple constitution.