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प्रश्न
What is the role of diffusion in heterogenous catalysis?
उत्तर
The gaseous molecules diffuse on to the surface of the solid catalyst and get adsorbed. After the required chemical changes the products diffuse away from the surface of the catalyst leaving the surface free for more reactant molecules to get adsorbed and undergo reaction.
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संबंधित प्रश्न
Write any two characteristics of Chemisorption.
Why are powdered substances more effective adsorbents than their crystalline forms?
Discuss the effect of pressure and temperature on the adsorption of gases on solids.
Which of the following is true about chemisorption?
The extent of adsorption increases with the ____________.
In physisorption adsorbent does not show specificity for any particular gas because ______.
Give an example where physisorption changes to chemisorption with rise in temperature. Explain the reason for change.
Which among the following is a false statement?
Write three differences between Physisorption and Chemisorption.
Which of the following statements is incorrect regarding physisorptions?
