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The given graphs//data I, II, II and I...

The given graphs//data ` I, II, II` and ` IV` pepresent general terends obseved of diffent physiorpton and chemisorption processes under mild conditions of temperature and pressure , which of the following choice (s) about `I,II,II ` an` IV` is (are) correcty ?
.

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
A, C
In physisorption on increasing temperature at constant pressure, adsorption decreases while in chemical adsorption on increase at same pressure. So, I is physisorption while II is chemisorption.
III is physisorption as on increasing temperature. extent of adsorption is decreasing.
IV is representing enthalpy charge (which is high) during chemical adsorption (due to bond formation). So, IV is valid for chemical adsorption. So answer is (a) aud (c)
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