Temp.(°C) k2(g mg-1 s-1) Ea(KJ mol-1) R2 ΔH#(KJ mol-1) ΔS#(J mol-1K-1) ΔG#(KJ mol-1) R2
Cephalexin 20 0.00024         89.0794  
40 0.00031 7.6682 0.9948 5.0851 -286.67 94.8128 0.9947
60 0.00035         100.546  

Cefixime

20 0.00023         92.1793  
40 0.00026 5.3745 0.9928 3.1952 -303.70 98.2533 0.9959
60 0.00030         104.327  
Table 4: Activation parameters for adsorption of Cephalexin and Cefixime on MgO nanoparticles.