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If $ X $ is the total number of collisions which a gasmolecule register with others per unit time under particular conditions, then the collision frequency of the gas containing N molecules per unit volume is
If $ X $ is the total number of collisions which a gasmolecule register with others per unit time under particular conditions, then the collision frequency of the gas containing N molecules per unit volume is
Updated On: May 12, 2022
- $ X/N $
- $ NX $
- $ 2NX $
- $ NX/2 $
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The Correct Option is D
Solution and Explanation
Number of collisions of one molecule/unit time $ =X $
Number of collision of N molecules /unit time $ =NX. $
As in one collision, two molecules are involved, collision frequency $ =NX/2 $
Number of collision of N molecules /unit time $ =NX. $
As in one collision, two molecules are involved, collision frequency $ =NX/2 $
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Concepts Used:
Collision Theory
The collision theory states that a chemical reaction can only occur between particles when they collide (hit each other). The collision between reactant particles is necessary but not sufficient for a reaction to take place. The collisions also have to be effective. It is important to understand the exact nature of an effective collision since this determines whether particles react with each other and form new products.
Molecular Collisions
- The more molecules are present, the more collisions will happen.
- Molecules must collide before they can react.
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(kinetic energy) to bring about this bond disruption. - As the temperature rises, molecules move faster and collide more vigorously,
greatly increasing the likelihood of bond cleavages and rearrangements. - Most reactions involving neutral molecules cannot take place at all until they have acquired the activation energy needed to stretch, bend, or otherwise distort one or more bonds.
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