On the Thermodynamic Properties of Nitric Oxide An Example of an Associated Liquid

Abstract

Liquid nitrix oxide consists largely of double molecules, as evidenced by the abnormally high entropy of vaporization and the high and variable specific heat. By making use of these data it is possible to calculate the extent to which single molecules exist in the liquid, the heat of dissociation of the double molecules, and the value the specific heat would have were the association in the liquid complete. A statistical calculation is made of the entropy of vaporization, and the result compared with the experimental value. An estimate is made of the heat of dissociation in the gas phase.