Khaidarov Gennadii Gasimovich, Khaidarov Andrey Gennadievich. The relationship between melting point, boiling point and critical point

Natural Sciences / Physics / Heat and thermodynamics

Submitted on: Feb 17, 2016, 13:35:02

Description: The theoretical formula for temperatures relationship was obtained. The relationship is derived from a single view of the processes of melting, boiling and evaporation. It uses the concept of internal energy of the substance from point of view of the concept of "unpacking" the molecules. The data from the directories for the 85 substances in the range of temperatures from 13 to 855 degrees Kelvin, confirm the theoretically derived formula. Comparison of theoretical formulas and experimental data was carried out on the mean values. The ideal model of a simple spherical shape of molecules has been taken as a model of a molecule of matter. For this model, the melting point is 1/3, and the boiling point of from 1/2 to 2/3 of the critical point.

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