Adsorption process

Thermodynamic charactrisitss

spontaneous

ΔG0 (−)

non spontaneous

ΔG0 (+)

exothermic

ΔH0 (−)

endothermic

ΔH0 (+)

affinity between adsorbent and adsorbate

ΔS0 (+) and ΔG0 (−)

no affinity between adsorbent and adsorbate

ΔS0 (+) and ΔG0 (+)