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Question

Which description best describes how a catalyst works?


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Solution

  1. Catalyst is the substance that helps in speeding up the reaction.
  2. Catalyst provides a surface where the rate of reaction becomes fast.
  3. In simpler words, we can say the reaction is proceeding fast with the help of a catalyst, without changing itself.
  4. They reduce the activation energy or change the reaction mechanism by speeding u the reaction.
  5. The common types of catalysts are as follows: enzymes, acid-base catalysts, heterogeneous catalysts, etc.
  6. The reaction happens more efficiently and hence the equilibrium is attained faster.
  7. Example: In the process of Hydrogenation the unsaturated hydrocarbon is converted to form saturated hydrocarbon in the presence of Palladium, Platinum, and Nickel catalyst.
  8. The chemical reaction includes catalyst as follows:
    CH2=CH2(g)+H2g400°CPd/Pt/NiC2H6(g)EtheneHydrogenEthane

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