dude,its not necessary that a layer formed in chemisorption is unimolecular but rather physisorption forms always a unimolecular layer. in chemisorption,perhaps it will depend on the reactivity of the adsorbate.
why there is unimolecular layer formation in chemisorption ???????
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4 Answers
					
			aieeee
					·2009-06-19 10:48:39
			
			
			
			
					
			eureka123
					·2009-06-20 03:10:47
			
			
			
		in chemisorption usually unimolecular layer will be observed becoz the additional adsorption layers occur only to some limited extent=> the additional layers are very weak..