For a certain reaction a large fraction of molecules has energy more than the threshold…
Chemistry · Class 12 · CBSE — Chemical Kinetics
For a certain reaction a large fraction of molecules has energy more than the threshold energy, still the rate of reaction is very slow. The possible reason for this could be that
- the colliding molecules could be large in size
- the colliding molecules must not be properly oriented for effective collisions
- the rate of reaction could be independent of the energy
- one of the reactants could be in excess.
Answer
(B) the colliding molecules must not be properly oriented for effective collisions
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- In a reaction 2 X → Y , the concentration of X decreases from 3.0 moles/litre to 2.0 moles/litre in 5…
- If hydrogen and oxygen are mixed and kept in the same vessel at room temperature, the reaction does not take…
- In a first order reaction, the concentration of reactant is reduced to 1/8 of the initial concentration in 75…
- The value of rate of a pseudo first order reaction depends upon
- For the reaction N 2 + 3H 2 → 2NH 3 , how are the rate of reaction expressions inter-related d [ H _ 2 ] d t…
- For an endothermic reaction, Δ H represents the enthalpy of the reaction in kJ mol –1 . The minimum amount of…
- The rate constant for the reaction, 2N 2 O 5 → 4NO 2 + O 2 is 2 × 10 –5 s –1 . If rate of reaction is 1.4 ×…
- A first order reaction takes 40 min for 30% decomposition. What will be t 1/2 ?
More Chemical Kinetics questions · Browse all practice questions