The diagrams below show plots of In k against 1 / T for four different chemical

Question

The diagrams below show plots of In k against 1 / T for four different chemical reactions: Reaction A, Reaction B, Reaction C, and Reaction D. (One of these two situations applies to this experiment.) Which reaction has the larger activation energy: Reaction A or Reaction B? Which reaction has the larger activation energy: Reaction C or Reaction D? Reaction D is faster than reaction C (it has a higher In k). Suggest a possible molecular-level reason why reaction D could be faster than reaction C? Reaction B is faster than reaction A. Suggest a possible molecular reason why.

Explanation / Answer

The reaction having lower activation energy will be faster. Reaction A is having higher activation energy and similarly reaction D is haviing lower activation energy and hence faster

C& D )

Possible molecular reasons

are Reaction D is homogeneous and collison between moleculces are fruitful

temperature of reaction D is higher than that of B

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