Fig. 6

Plot of apparent molar isentropic compressibility, \({\text{K}}_{\text{s},\upphi }\) vs square root of molality \({\text{m}}^{1/2}\) for QUE/7-HF in (A–C) – 30 v/v EtOH at T = 293.15, 298.15 and 303.15 K, respectively and (D–F) – 40 v/v EtOH at T = 293.15, 298.15 and 303.15 K, respectively.