The minimum energy which two molecules should possess so that their collisions result in a chemical reaction is called:

activation energy

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threshold energy

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dissociation energy

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none of these

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Solution

The correct option is B threshold energy
The minimum energy which two molecules should possess so that their collisions result in a chemical reaction is called threshold energy.

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The molecules during collisions attain threshold energy and only then they result in chemical reaction. Certain collisions inspite of possessing thr es hold energy do not result in chemical reactions. This is because the orientation of collisions is not suitable for a chemical reaction. Thus, the collisions which are associated with threshold energy and
proper orientation only result in chemical reaction.

Q. The minimum energy a molecule should possess in order to enter into the collision is called what?

Q. Minimum amount of energy that the colliding reactant molecule must possess for the chemical reaction to occur is called

Q. Which of the following will result when the temperature is increased as the chemical reaction proceeds?
I. Increased molecular collision frequency
II. Increased numbers of molecules possess energy greater than the activation energy
III. Decreased randomness of the system

Which of the following statements is incorrect about the collision theory of chemical reaction?

(a) It considers reacting molecules or atoms to be hard spheres and ignores their structural features
(b) Number of effective collisions determines the rate of reaction
(c) Collision of atoms or molecules possessing sufficient threshold energy results into the product formation
(d) Molecules should collide with sufficient threshold energy and proper orientation for the collision to be effective

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The minimum energy which two molecules should possess so that their collisions result in a chemical reaction is called:

The correct option is B threshold energyThe minimum energy which two molecules should possess so that their collisions result in a chemical reaction is called threshold energy.

The correct option is B threshold energy
The minimum energy which two molecules should possess so that their collisions result in a chemical reaction is called threshold energy.