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Surface tension and heat of the surface formation of liquids

E. A. Eyvazov

Azerbaijan State Pedagogical University, AZ-1000 Baku, Azerbaijan

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and

A. B. Ibrahimli

Azerbaijan State Pedagogical University, AZ-1000 Baku, Azerbaijan

Institute for Space Research of Natural Resources, Azerbaijan National Aerospace Agency, AZ-1106 Baku, Azerbaijan

E-mail Address: aygunibrahimli@yahoo.com

Corresponding author.

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https://doi.org/10.1142/S0217979220503002Cited by:1 (Source: Crossref)

Abstract

By the potential method, it was determined that regardless of the nature of the liquid, the surface tension coefficient is determined by $σ = 2 q \frac{(T_{K} - T)}{(T_{K} + T)}$ $σ = 2 q \frac{(T_{K} - T)}{(T_{K} + T)}$ . In this expression, $q$ $q$ is the specific heat of the surface formation, $T_{k}$ $T_{k}$ is the critical temperature. According to our approach, the specific heat of the surface formation (SHS) also depends on temperature: $q = q_{m} + α \cdot (T - T_{m})$ $q = q_{m} + α \cdot (T - T_{m})$ ( $q_{m}$ $q_{m}$ — the specific heat of the surface formation at the mealting temperature, $α$ $α$ — thermal coefficent of SHS). In this research work, the temperature dependence of the surface tension coefficient was calculated for seven dissimilar liquids. It was revealed that the calculated values of $σ$ $σ$ are in satisfactory agreement with the available experimental values.

Keywords:

PACS: 43.35.pt, 61.25.mv

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