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Addition Reaction

Adsorption is...

Question

Adsorption isobars of chemisorption and physisorption are of the same type.

A

True

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B

False

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Solution

The correct option is B False
Adsorption isobars of chemisorption and physisorption are of different type. They are the plots of extent of adsorption (x/m) versus temperature at constant pressure. In case of physisorption, with increase in temperature, the extent of adsorption decreases. In case of chemical adsorption, with increase in temperature, the extent of adsorption decreases.

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Q. Choose the correct option(s) regarding adsorption isobars for chemisorption and physisorption:

Q. Which among physisorption and chemisorption has a higher enthalpy of adsorption?

Q. Answer in one word:
Out of physisorption and chemisorption which on has lower enthalpy of adsorption?

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. Which of the following is correct adsorption isobar for chemisorption ?
Here,

(\frac{x}{m})

is extent of adsorption per unit mass of adsorbent:

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