Chemistry-
General
Easy

Question

In gaseous reactions, important for the understanding of the upper atmosphere H20 and 0 react bimolecularly to form two OH radicals. Mf for this reaction is 72 kJ at 500 K and Ea is 77 kJ mol-I; then for the bimolecular recombination of two OH radicals to form H20 and 0 is:

  1. 3 kJ m o l to the power of negative 1 end exponent    
  2. 4 kJ m o l to the power of negative 1 end exponent    
  3. 5 kJ m o l to the power of negative 1 end exponent    
  4. 7 kJ m o l to the power of negative 1 end exponent    

The correct answer is: 5 kJ m o l to the power of negative 1 end exponent

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