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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

Adsorption produces heat which increases the speed of the reaction

B

Adsorption lowers the activation energy of the reaction

C

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

D

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

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The correct Answer is:
B
A catalyst lowers the activation energy of the reaction following adsorption mechanism.
`:.` Rate of reaction `prop(1)/("Activation energy")`
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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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