LAUSR

With densities and ultrasonic speeds, interactions of aniline with ethylene glycol, diethylene glycol, and triethylene glycol are measured at T = (293.15–308.15) K. From the densities, the (apparent molar and partial molar) volumes, Vϕ and Vϕ0 are computed. The apparent specific volume υϕ and partial specific volume υϕ0 are also evaluated from density data. The (apparent molar and partial molar) isentropic compressions, Kϕ,s and Kϕ,so have been evaluated from measured ultrasonic speeds. The transfer properties such as partial molar isentropic compression and partial molar volumes of transfer (ΔKϕ,so and ΔVϕ0) are also determined utilizing density and ultrasonic speed data. The pair and the triplet interaction coefficients are computed from partial molar isentropic compression and partial molar volumes of transfer. The partial molar expansibility (∂Vϕ0/∂T)p and second order derivative (∂2Vϕ0/∂T2)p are also calculated. The parameters hence obtained are conferred in terms of solute–solute or solute–solvent i...