Comparison of different approaches to calculate ideal speeds of sound and physico-chemical parameters of binary liquid mixtures

Various approaches used in literature for the calculation of ideal speeds of sound which are further used to evaluate the quantity which may be deviations in speeds of sound Delta u or excess speeds of sound u(E) have been analyzed for 2-methoxyethanol + 2-(2-alkoxyethoxy)ethanol binary liquid mixtures. Different numerical values are obtained for different approaches which will give rise to different interpretations of the results. Further, physico-chemical parameters for pure components and binary liquid mixtures have been calculated. Speeds of sound have also been estimated using theoretical models.