THE point which Mr. Browne (p. 102) raises is covered by Voigt (“Thermodynamik,” vol. ii., § 69, pp. 209 et seq.). Ordinary diffusion of two gases at equal pressure and temperature is an irreversible ...

IN a recent communication, Metzner 1 directed attention to some experiments in which abnormally high rates of diffusion were found for the transfer of solutes of low molecular weight in certain ...