In order to react, a molecule, at the time of the collision, must possess a certain amount of energy known as:

free energy

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kinetic energy

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threshold energy

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internal energy

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Solution

The correct option is C threshold energy
Activation Energy is the minimum amount of energy needed to overcome a potential barrier.
Hence energy required to cross barrier= Initial energy + Activation Energy=Threshold energy

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neutron emitted in a fusion loses one half of its kinetic energy in each collision with a moderator molecule. Number of collision it must be more to reach thermal energy will be

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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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In order to react, a molecule, at the time of the collision, must possess a certain amount of energy known as:

The correct option is C threshold energyActivation Energy is the minimum amount of energy needed to overcome a potential barrier.Hence energy required to cross barrier= Initial energy + Activation Energy=Threshold energy

The correct option is C threshold energy
Activation Energy is the minimum amount of energy needed to overcome a potential barrier.
Hence energy required to cross barrier= Initial energy + Activation Energy=Threshold energy