Sur le taux de variation adiabatique de la température en fonction de la pression dans une masse d'air contenant un cristal de glace sphérique

The formula giving the rate of variation is established under the assumption: 1) that the transformation is adiabatic (equ. 8); 2) that this transformation is reversible (equ. 15). After having examined the order of magnitude of the different terms of the equations in order to determine those which can be neglected one can deduce the rate of variation (equ. 18). One can show that the formulae in the classical thermodynamics giving the rate of variation for saturated (equ. 21) and for dry air (equ. 22) are special cases of the general formula. DOI: 10.1111/j.2153-3490.1959.tb00001.x