Which of the following characteristics is not correct for physical adsorption ?
A
Adsorption is spontaneous
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B
ΔH and ΔS are negative
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C
It is reversible in nature
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D
Degree of adsorption increases with temperature
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Solution
The correct option is C Degree of adsorption increases with temperature Physical adsorption is exothermic in nature. So rate of Physical adsorption decreases with increase in temperature.