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NTA Abhyas 2020
Exam
NTA Abhyas
Year
2020
Subject
Chemistry
Chapter
Surface Chemistry

NTA Abhyas 2020 · Chemistry · Surface Chemistry

A graph is plotted between (x/m) and log P according to the...

A graph is plotted between \log (x/m) and log P according to the equation xm=kP1n\dfrac{x}{m} = kP^{\dfrac{1}{n}} .

A graph is plotted between (x/m) and log P according to the equation (x)/(m) = kP^ (1)/(n) . Which of the following

Which of the following statements about this graph is not correct?

Options

  1. AThe figure shows Freundlich adsorption isotherm
  2. BThe figure shows Langmuir adsorption isotherm
  3. CThe adsorption varies with pressure
  4. DThe factor 1/n can have values between 0 and 1

Correct answer

B. The figure shows Langmuir adsorption isotherm

Step-by-step solution

This is Freundlich isotherm not Langmuir.

It is also written as

logxm=logk+1nlogplog \dfrac{x}{m} = log k + \dfrac{1}{n}log p

where

x = mass of adsorbate

m = mass of adsorbent

p = Equilibrium pressure of adsorbate

K and n are constants for a given adsorbate and adsorbent at a particular temperature.
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