(a) since adsorption is exothermic process, asadsorption proceeds number of active sitespresent over adsorbent decreases, so less heatis evolved. (b) since NH3 has higher force of attraction onadsorbent due to its polar nature (high value of 'a'). (c) As the adsorption increases, residual forces oversurface decreases. (d) Since process is exothermic, on increasingtemperature it shift to backward direction, soconcentration of adsorbate particle decreases.
