Home
Class 12
CHEMISTRY
In a reaction, the threshold energy is e...

In a reaction, the threshold energy is equal to

A

Activation energy + normal energy of reactants

B

Activation energy – normal energy of reactants

C

Activation energy

D

Normal energy of reactants.

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • Chemical Kinetics

    MOTION|Exercise Exercise - 2 (Level-I) (Sequential, parallel & reversible reaction)|3 Videos

  • Chemical Kinetics

    MOTION|Exercise Exercise - 2 (Level-I) (Mechanism of reaction and theories of reaction rate)|3 Videos

  • Chemical Kinetics

    MOTION|Exercise Exercise - 2 (Level-I) (Experimental Method to calculate order)|4 Videos

  • CHEMICAL EQUILIBRIUM

    MOTION|Exercise Exercise - 4|20 Videos

  • CLASSROOM PROBLEMS

    MOTION|Exercise Electrochemistry|22 Videos

Similar Questions

Explore conceptually related problems

For a reaction A rarr B, E_(a) for the forward reaction E_(a(f)) and backward reaction E_(a(b)) is 9kJ mol^(-1) and 9kJ mol^(-1) , respectively. Potential energy of A is 12 kJ mol^(-1) . Calculate (a) The heat of the reaction (b) The threshold energy of reaction (THE) ( c) The potential energy of Products (PE)

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

A particle of mass m strikes a stationary nucleus of mass M and activated an endoergic reaction. Show that the threshold kinetic energy required to initiate this reaction is T_(th) = (m+ M)/(M) |Q| . Where Q is the energy of the reaction.

Assertion : A catalyst lowers the threshold energy level for a reaction Reason : A catalyst combines with one of the reactans of from an intermediate the follows an alternate path with lesser energy of activation.

Assertion (A) : Catalyst increases the rate of a reaction Reason (R) : It lowers the threshold energy of the reaction.

The energy profile diagram for the reaction: CO(g)+NO_(2)(g) hArr CO_(2)(g)+NO(g) is given below: The threshold energy of the reaction is