A graph of adsorption isobar of chemisorption shows that adsorption
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a
First decreases with temperature and then increases
b
First increases with temperature and then decreases
c
Increases with temperature
d
Decreases with temperature
answer is B.
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Detailed Solution
Like a chemical reaction ,chemisorption requires considerable activation energyAs temperature increases,extent of chemical adsorption increases and reaches a maximum.Above certain temperature extent of chemisorption decreases due to desorption of adsorbate