Surface Chemistry
Choose the correct reason(s) for the stability of the lyophobic colloidal particles.
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Multiple Choice
A catalyst is a substance that :
Ahelps in attaining equilibrium faster (if any)
Correct Answer
Bincreases the rate of forward and backward reaction (if any)
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Clowers the threshold energy level
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Dprovides new pathway to reaction
Correct Answer
Solution
A Catalyst is a substance which accelerates the rate of a chemical reaction without undergoing any change in its chemical composition or mass during the reaction. A catalyst accelerates the rate of a reaction by lowering the activation energy. Catalyst provides alternate pathway for reaction. Also, it increases the rate of backward and forward reaction to same extent. (as shown) Due to this lower activation energy, equilibrium attains faster.
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