JEE Main 2019 — Surface Chemistry Question with Solution
From: JEE Main 2019 (Online) 8th April Morning Slot
Question
Adsorption of a gas follows freundlich adosorbed isotherm. x is the mass of the gas adsorbed on
mass m of the adsorbent. The plot log versus log p is shown in the given graph. is
proportional to :


This question includes a diagram. The text above accompanies the figure.
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Show full solutionCorrect option: A
Correct answer
Ap2/3
Step-by-step explanation
According to Freundlich adsorption isotherm, in the median range of pressure
= kP
taking log both sides, we get,
log = logk + logP
Here in graph between log and logP, slope is and intercepts = log k.
From the given graph,
slope =
=
n =
= kP
= kP
taking log both sides, we get,
log = logk + logP
Here in graph between log and logP, slope is and intercepts = log k.
From the given graph,
slope =
=
n =
= kP
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