Table 5: Temperature-dependent activation parameter for PKOEs/Tween 80 : Span 80/water systems.

FormulationΔH (kJ mol−1)ΔG (kJ mol−1)Δ (J K−1 mol−1)
Temperature, KTemperature, KTemperature, K
298303308313298303308313298303308313

Pre-F23.816.28.0−0.738.838.438.137.9−50.5−75.3−101.6−129.1
FNE196.167.336.43.339.938.738.438.3188.692.0−10.7−117.8
FNE2
  (a)47.629.39.8−11.157.656.556.055.5−33.8−92.9−156.1−221.6
  (b)98.980.259.938.360.959.858.558.1127.563.7−1.7−72.7
  (c)107.582.154.925.762.961.760.960.6149.664.1−26.3−121.3
  (d)108.269.227.3−17.464.062.562.262.0148.318.5−120.0−263.8
  (e)81.760.838.314.364.763.963.363.357.1−13.7−88.0−166.6
FNE3
  (a)52.859.265.972.957.857.156.355.4−16.83.725.046.9
  (b)91.771.950.627.961.360.059.559.0102.036.0−35.4−109.0
  (c)96.572.346.318.563.261.861.260.7111.831.1−55.0−144.7
  (d)107.077.044.910.564.162.862.262.1144.043.3−63.1−174.8
  (e)91.065.838.89.965.064.163.563.587.02.2−87.1−181.2
FNE4
  (a)63.364.766.067.457.957.256.455.718.021.525.228.4
  (b)69.052.234.215.061.460.459.759.325.3−30.4−89.1−151.0
  (c)81.258.834.79.063.562.261.661.159.5−14.7−94.1−176.4
  (d)98.173.948.020.264.363.162.662.3113.432.0−54.3−144.5
  (e)78.360.441.120.465.264.363.863.644.2−16.6−80.7−148.2
FNE5
  (a)68.061.153.745.758.257.556.756.232.78.8−15.8−42.7
  (b)83.762.138.914.161.960.660.059.573.11.6−75.2−154.7
  (c)95.268.740.29.863.962.662.161.8105.316.6−77.6−176.1
  (d)81.760.036.811.964.463.563.363.157.9−14.9−93.0−173.8
  (e)73.556.137.517.565.264.463.963.727.6−31.0−92.7−157.8