When the solutions may be taken as effectively dilute, so that the gas laws apply to the osmotic pressure, this relation reduces to E _ nrRT to c1 ey gE c2 where n is the number of ions given by one molecule of the salt, r the transport ratio of the anion, R the gas constant, T the absolute temperature, y the total valency of the anions obtained from one molecule, and c i and c 2 the concentrations of the two solutions.
13 C figure of the three lines YX, XE, EY in the frame, and represents the three forces in equilibrium at the point YXE of the frame.
The direction of YX, being a thrust upwards, shows the direction in which we must go round the triangle YXE to find the direction of the two other forces; doing this we find that the force XE must act down towards the point YXE, and the force EY away from the same point.
The very names of the islands indicate their nature, for the terminal a or ay is the Norse ey, meaning "island," which is scarcely disguised even in the words Pomona and Hoy.
The Orkneys were the Orcades of classical writers, and the word is probably derived from the Norse Orkn, seal, and ey, island.