In collision theory of chemical reaction, Z AB represents

In collision theory of chemical reaction, ZAB represents
  1. the fraction of molecules with energies greater than Ea
  2. the collision frequency of reactants, A and B
  3. steric factor
  4. the fraction of molecules with energies equal to Ea

Solution

Collision frequency is number of collision occurring per unit time per unit volume. 

 ZAB= Collision frequency

Asked in: NEET 2020 (Phase 2)

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