AMU Engineering 2017 solved paper Solved Paper

Rate of chemisorption of a gas increases with the increase in pressure because more molecules are adsorbed on the surface at higher pressure. This can also understood by the following relation:
log‌

x

m

=log‌k+

1

n

‌log‌p
where,

x

m

= mass adsorbed over per unit surface of adsorbent.
n and k are constants
p= pressure,
i.e.

x

m

∝p