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Mechanism of Adsorption

Adsorption in...

Question

Adsorption increases with increase in temperature in Physisorption.

A

True

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B

False

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Solution

The correct option is B False
Physisorption occurs at low temperature and decreases with the increase in temperature.
Thus, the given statement is false.

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Similar questions

Q. The correct statement(s) pertaining to the adsorption of a gas on a solid surface is(are):
(i) adsorption is always exothermic.

(ii) physisorption may transform into chemisorption at high temperature.
(iii) physisorption increases with increasing temperature but chemisorption decreases with increasing temperature.
(iv) chemisorption is more exothermic than physisorption, however, it is very slow due to the higher energy of activation.

Q. Adsorption increases with increase in temperature in Chemisorption.
If true then enter 1 else enter 0.

N_{2}

is adsorbed on iron surface at

83

K which decreases rapidly with increase in temperature and at room temperature, practically no adsorption of

N_{2}

occurs. The adsorption, however, becomes significant at

773

K. Reason: At lower temperature, adsorption of

N_{2}

molecules on iron surface is physisorption and at high temperatures,

N_{2}

shows chemisorption of

N

atoms on iron surface.

Q. Assertion :Physical adsorption increases with increase in temperature. Reason: Physical adsorption is an endothermic process.

Q. In endothermic reaction with the increase of temperature adsorption will be :

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