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CBSE Class 12-science Answered

Surface Chemistry  1) define . enthalpy of adsorption and extent of adsorption and adorption isobar  2) what are the factors that influence the the adsorption of a gas on a solid ?  3) how does the extent of adsorption in the solution phase vary with concentration of solution ?  4) name the two groups into which the phenomenon of catalysis can be divided . Give an example of each group which chemical equation involved . 5)difference b/w peptisation and coagulation  6) explain Hardy Schulze rule  THANKYOU       
Asked by niharikapabba2605 | 07 Aug, 2018, 01:21: AM
answered-by-expert Expert Answer
enthalpy of adsorption
 
When adsorption takes place, the residual forces on the surface of the adsorbent decreases i.e. surface energy decreases. This is called as heat of adsorption.
 
Adsorption isobar:

A graph drawn between the amount of the gas adsorbed per gram of the adsorbent (x/m) and temperature ‘t’ at a constant equilibrium pressure of adsorbate gas is known as adsorption isobar.
 
Please click on below link for the solution of question 2.
 
Adsorption of a gas on a solid 
Answered by Varsha | 07 Aug, 2018, 11:08: AM

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Surface Chemistry  1) define . enthalpy of adsorption and extent of adsorption and adorption isobar  2) what are the factors that influence the the adsorption of a gas on a solid ?  3) how does the extent of adsorption in the solution phase vary with concentration of solution ?  4) name the two groups into which the phenomenon of catalysis can be divided . Give an example of each group which chemical equation involved . 5)difference b/w peptisation and coagulation  6) explain Hardy Schulze rule  THANKYOU       
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