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According to the adsorption theory of ca...

According to the adsorption theory of catalysis the speed of the reaction increases because

A

the concntration of the reactant molecules at the active centres of catalyst becomes high due to adsorption

B

in the process of adsorption ,the activation energy of the molecules become large

C

adsorption produces heat which increases the speed of the reaction

D

adsorption lowers the activation energy of the reaction

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According to the adsoption theory of catalysis ,the speed of the reaction increases because:

Adsorption is a surface phenomenon and it differs feom adsorption which occurs throughout the body of the substance which absorbs. In physisorption, the attractive forces are mainly van der Waals' forces while in chemisorption actual bonding occurs between the particles of adsorbent and adsorbente. Generally, easily liquefying gases are adsorbed more easily on the surface of a solid as compared to teh gases whihc are liquefied with difficult. Adsorption increases with the increases in pressure and decreases as the temperature is increases. According to adsorption theory of catalysis, the speed of the reaction increases because

Substances which alter the velocity of a reaction by mere presence, without undergoing any change in mass and compossition are termed catalyst and the phenomenon is known as catalysis According to the adsorption theroy of catalysis, the rate of reaction increases because

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OP TANDON-ADSORPTION AND CATALYSIS-OBJECTIVE QUESTIONS (LEVEL-A)
  1. The rate of physisorption increases with

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  2. Which is not correct for physical adsorption?

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  3. According to the adsorption theory of catalysis the speed of the react...

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  4. The chemical equlibrium of a reversible reaction is not influenced by ...

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  5. Identify the gas which is readily adsorbed by activated charcoal?

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  6. Which of the following belong(s) to the family of enzymes?

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  7. Which statement about zeolite is false ?

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  8. Adsorpton of gases on solid surface is generally exothermic because :

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  9. Identify the correct statement regarding enzymes.

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  10. The extent of adsorption of a gas on a solid depends on the :

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  11. Which of the following is true in respect of chemical adsorption?

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  12. If x/m is the mass of adsorbate adsorbed per unit mass of adsorbent, P...

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  13. The efficiency of an enzyme to catalyse a reacrtion is due to its capa...

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  14. Although nitrogen does not adsorb on surface at room temperature, it a...

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  15. What is the equation form of Langmuir adsorption isotherm undre high p...

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  16. What is an adsorption isotherm? Describe Freundlich adsorption isother...

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  17. Which of the following statements is incorrect regarding physisorption...

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  18. Active charcoal is a good catalyst because :

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  19. According to the adsorption theory of catalysis the speed of the react...

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  20. The Langmuir adsorption isotherm is deduced using the assumption.

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