A note on the Critical Point and the Boiling Point of n-Paraffines

• Published in: Busseiron Kenkyu Vol. 1954; no. 75; pp. 73 - 80
• Main Authors: Kurata, Michio, Ishida, Shin-ichi
• Format: Journal Article
• Language: Japanese
• Published: Editorial Board of Bussei Kenkyu @ Web 1954
• ISSN: 1883-7808
• DOI: 10.11177/busseiron1943.1954.75_73

A hole theory of liquid paraffines is developed to obtain a relationship between the critical point and the carbon number n of molecules. The theory of the zeroeth approximation for the lattice liquid composed of single-site holes and n-sites molecules leads us to the following results which coincide with the experimental data. (i) The recipocal of the critical temperatura should increase linearly with is reasing the quantity, {(1/2n) + (1/√n)}. (ii) The Kammelingh-Onnes constant should increase from 2.6 to 3.0 with increasing the carbon number. (The experimental values increase from 3.4 to 3.9) (iii) The product of n and the critical pressure should be proportional to the critical temperature. A linear relation holds too between the reciprocal of the boiling point and {(1/2n) + (1/√n)}, with good accuracy.