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Surface Chemistry
Question
Why are powdered substances more effective adsorbents than their crystalline forms?
Solution
Answer:
Powderded substance are more effective adsorbent than their crystalline forms because when a substance is powdered its surface area increase and physisorption is directly proportional to the surface area of adsorbent,
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Some More Questions From Surface Chemistry Chapter
In Haber's process, hydrogen is obtained by reacting methane with steam in presence of NiO as catalyst. The process is known as steam reforming. Why is it necessary to remove CO when ammonia is obtained by Haber’s process?
Why is the ester hydrolysis slow in the beginning and becomes faster after sometime?
What is the role of desorption in the process of catalysis?
Why is it essential to wash the precipitate with water before estimating it quantitatively?
What is adsorption?
What do you mean by adsorbent and adsorbate?
What is desorption?
Define physical and chemical adsorption.
Is adsorption exothermic or endothermic?
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