Abstract
ABSTRACT Density (ρ), speed of sound (u), viscosity (n) and refractive index (nD ) of binary liquid mixtures comprising of N-vinyl-2-pyrrolidinone + 1-butanol, + 1-pentanol, + 1- hexanol and + 1-heptanol are accurately measured over the entire range of mole fractions at different temperatures (293.15 to 313.15) K and atmospheric pressure. Utilising the basic experimental data, various excess thermodynamic functions such as excess molar volume (VE ), deviation in viscosity (Δη), deviation in the speed of sound (Δu), deviation in isentropic compressibility (ΔKs, ), deviation in refractive index (ΔnD) and excess Gibbs-free energy of activation of viscous flow (ΔG* E ) were calculated. To estimate the binary coefficients and standard deviation between the calculated and experimental values, the excess values were fitted to the Redlich−Kister polynomial equation. The analysis of these functions depicts the existence of specific and non-specific interactions.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
