Computation of Thermoacoustic and Thermodynamic Properties of Aqueous Methyl Orange Solution from Density and Sonic Speed Data

Abstract

Density and ultrasonic speed data have been used to calculate a number of useful and important thermoacoustic and thermodynamic parameters such as thermal expansivities, α, isothermal compressibility, βT, internal pressure, Pint, specific heat ratio, Υ, surface tension, σ, Pseudo-Grüneisen parameter, Г, non-linearity parameter, B/A, by empirical relations at T= (303, 308, 313 and 318) K temperatures in the range concentration from 0.05 to 1 molar. Solvation number, Sn, has been computed to support the conformational change in geometry of aqueous methyl orange solution. The calculated values highly support the change in orientation and abnormal behavior of methyl orange solution at varying concentrations and quite satisfactory results are obtained.