Get Answers to all your Questions

header-bg qa

5.5 What is an adsorption isotherm? Describe Freundlich adsorption isotherm. 

 

Answers (1)

best_answer

The adsorption isotherm is a relation curve between the variation in the amount of gas adsorbed by the adsorbent with pressure at a constant temperature.  

Freundlich adsorption isotherm-  Freundlich gave an empirical relationship between the quantity of gas adsorbed by a unit mass of solid (adsorbent) and pressure (at a particular temperature).  

  • At high pressure- xm=kp[[independent of P]0
  • At intermediate pressure xm=kp1n for n>1k and n are constant (depend on nature of gas) Here x= mass of gas adsorbed, and m= mass of adsorbent at pressure p

On taking log both sides-   

logxm=log(k)+1nlog(p)  

Posted by

manish

View full answer

Crack CUET with india's "Best Teachers"

  • HD Video Lectures
  • Unlimited Mock Tests
  • Faculty Support
cuet_ads