The activity of a catalyst has been explained in terms of spontaneous adsorption of reactant moleculse on the surface of catlyst and ther by forming an activated adsorbed complex along with evolution of heat . The adorbed activated complex undergoes to decompositio to regencerate catlyst and give products . adorpton is of two types : (i) Physical adsorptio due to van der Waal'sforces of attraction between reactant and catalyst molecules , weak , less exothermic, mulitlay and non-dirctional . (ii) Chemical dasorpton due to free valencies , strong, more exothermic, unilayer. The extent of adormpotion ( x//m) vs temperature at constant pressure gives isobars. Freundilish studied influence of pressure on the phusical adorptons and reported that log x/m log K + 1/n log P. Select the correct satements .

The activity of a catalyst has been explained in terms of spontaneous

1.	The activity of a catalyst has been explained in terms of spontaneous adsorption of reactant moleculse on the surface of catlyst and ther by forming an activated adsorbed complex along with evolution of heat . The adorbed activated complex undergoes to decompositio to regencerate catlyst and give products . adorpton is of two types : (i) Physical adsorptio due to van der Waal'sforces of attraction between reactant and catalyst molecules , weak , less exothermic, mulitlay and non-dirctional . (ii) Chemical dasorpton due to free valencies , strong, more exothermic, unilayer. The extent of adormpotion ( x//m) vs temperature at constant pressure gives isobars. Freundilish studied influence of pressure on the phusical adorptons and reported that log x/m log K + 1/n log P. Select the correct satements .
Answer» I, III, IV I,II, III II, III, Iv I,II , IV Solution :All these are FACTS .