Table 5 Values of \({\text{K}}_{\text{s}}^{0}\),\({\text{S}}_{\text{K}}\), \({\text{K}}_{\text{s},\upphi }^{0}\), \({\text{S}}_{\text{k},\upphi }\) and \({\Delta }_{{\text{tr}}{\text{K}}_{\text{s},\upphi}}^{0}\) for QUE and 7-HF with NAM of different concentrations in hydro-ethanolic medium at experimental temperatures and experimental pressure P = 101 kPa
\(T/\)K | \({\text{K}}_{\text{s}}^{0}\times \) \({10}^{10}/{\text{m}}^{2}{\text{N}}^{-1}\) | \({\text{S}}_{\text{K}}\times {10}^{10}/{\text{m}}^{2}{\text{N}}^{-1}{\text{mol}}^{-1/2}{\text{kg}}^{1/2}\) | \({\text{K}}_{\text{s},\upphi }^{0}\times 1{0}^{11}/{\text{m}}^{5}{\text{mol}}^{-1}{\text{N}}^{-1}\) | \({\text{S}}_{\text{k},\upphi }\times \) \({10}^{10}\)/\({\text{m}}^{5}{\text{N}}^{-1}{\text{mol}}^{-3/2}{\text{kg}}^{1/2}\) | \({\Delta }_{{\text{tr}}{\text{K}}_{\text{s}},\upphi }^{0}\times \) \({10}^{11}\)/\({\text{m}}^{5} {\text{mol}}^{-1}{\text{N}}^{-1}\) | |||||
|---|---|---|---|---|---|---|---|---|---|---|
QUE | 7-HF | QUE | 7-HF | QUE | 7-HF | QUE | 7-HF | QUE | 7-HF | |
30 v/v-EtOH + 0.5 m NAM | ||||||||||
293.15 | 3.78 ± 0.01 | 3.82 ± 0.08 | 6.97 ± 0.03 | 5.97 ± 0.01 | − 6.51 ± 0.04 | − 5.80 ± 0.05 | 9.84 ± 0.08 | 8.58 ± 0.04 | 1.47 | 2.18 |
298.15 | 3.77 ± 0.02 | 3.82 ± 0.08 | 6.96 ± 0.03 | 5.87 ± 0.01 | − 6.39 ± 0.04 | − 5.58 ± 0.04 | 9.69 ± 0.07 | 8.28 ± 0.05 | 1.38 | 2.19 |
303.15 | 3.76 ± 0.02 | 3.82 ± 0.08 | 6.88 ± 0.03 | 5.71 ± 0.01 | − 5.98 ± 0.04 | − 5.07 ± 0.04 | 9.13 ± 0.04 | 7.57 ± 0.03 | 1.66 | 2.56 |
30 v/v-EtOH + 1.0 m NAM | ||||||||||
293.15 | 3.74 ± 0.04 | 3.81 ± 0.02 | 6.75 ± 0.07 | 5.59 ± 0.03 | − 3.92 ± 0.02 | − 3.24 ± 0.02 | 6.25 ± 0.04 | 5.16 ± 0.04 | 4.06 | 4.73 |
298.15 | 3.73 ± 0.04 | 3.75 ± 0.01 | 6.63 ± 0.07 | 6.41 ± 0.03 | − 4.02 ± 0.02 | − 3.53 ± 0.02 | 6.36 ± 0.04 | 5.64 ± 0.04 | 3.74 | 4.23 |
303.15 | 3.73 ± 0.04 | 3.77 ± 0.01 | 6.39 ± 0.07 | 5.24 ± 0.03 | − 4.14 ± 0.02 | − 3.79 ± 0.02 | 6.45 ± 0.04 | 5.80 ± 0.03 | 3.51 | 3.85 |
40 v/v-EtOH + 0.5 m NAM | ||||||||||
293.15 | 3.82 ± 0.04 | 4.18 ± 0.01 | 9.74 ± 0.08 | 6.28 ± 0.03 | − 5.50 ± 0.03 | − 2.29 ± 0.01 | 8.78 ± 0.04 | 4.07 ± 0.03 | 1.28 | 4.49 |
298.15 | 3.82 ± 0.04 | 4.05 ± 0.01 | 9.50 ± 0.07 | 7.94 ± 0.01 | − 5.62 ± 0.03 | − 3.15 ± 0.02 | 8.87 ± 0.04 | 5.45 ± 0.03 | 1.03 | 3.49 |
303.15 | 3.82 ± 0.04 | 3.86 ± 0.04 | 9.21 ± 0.07 | 10.30 ± 0.05 | − 5.69 ± 0.03 | − 4.20 ± 0.02 | 8.89 ± 0.05 | 7.07 ± 0.04 | 0.85 | 2.37 |
40 v/v-EtOH + 1.0 m NAM | ||||||||||
293.15 | 3.72 ± 0.02 | 4.06 ± 0.01 | 9.98 ± 0.04 | 5.56 ± 0.03 | − 5.23 ± 0.04 | − 2.42 ± 0.01 | 8.58 ± 0.03 | 4.05 ± 0.03 | 1.55 | 4.35 |
298.15 | 3.69 ± 0.01 | 4.05 ± 0.01 | 9.89 ± 0.03 | 5.45 ± 0.03 | − 5.30 ± 0.04 | − 2.25 ± 0.01 | 8.64 ± 0.04 | 3.80 ± 0.02 | 1.33 | 4.38 |
303.15 | 3.69 ± 0.01 | 4.05 ± 0.01 | 9.68 ± 0.03 | 5.31 ± 0.03 | − 5.41 ± 0.04 | − 2.32 ± 0.01 | 8.73 ± 0.04 | 3.86 ± 0.02 | 1.16 | 4.24 |