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Q.

The enthalpy of chemisorption is

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a

less than that of physisorption

b

unpredictable

c

more than that of physisorption

d

equal to that of Phys sorption

answer is B.

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Detailed Solution

  • Chemisorption has high adsorption enthalpy nearly 80 to 240 kJ/mol.
  •  It favours low temperature.
  •  It favours high temperature. 
  • Physisorption decreases with increase in temperature
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