Question

Differentiate between physisorption and chemisorption.

24 Jan 2018
Answer :
Word Count : 249

Difference between physical adsorption and chemisorption are as following:

PHYSICAL ADSORPTION

CHEMISORPTIONS
The forces operating in these are weak     vander Waal’s forces. The forces operating in these cases are similar to those of a chemical bond.
The heat of adsorption are low i.e. about 20 – 40 kJ mol-1 The heat of adsorption are high i.e. about 40 _____ _________ __________ ____ ___ _________ __________ ____.
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