Collision Theory
Easychemistry
According to collision theory, the rate of reaction increases with temperature because:
Select the correct option:
Solution
Incorrect! Answer:
Both of the above
According to Collision Theory, the rate of reaction depends on two factors:
- Collision Frequency (Z): The number of collisions per unit volume per unit time. As temperature increases, molecules move faster, increasing Z.
- Effective Collisions: Only some collisions result in a reaction. For success, the colliding molecules must have energy ≥Ea.
- According to the Maxwell-Boltzmann distribution, a small increase in temperature substantially increases the fraction of molecules that possess enough energy to cross the activation barrier.
- Both factors contribute, but the energy factor is much more significant.
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About This Question
- Subject
- chemistry
- Chapter
- chemical kinetics
- Topic
- collision theory
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
Both of the above
According to Collision Theory, the rate of reaction depends on two factors:
- Collision Frequency (Z): The number of collisions per unit volume per unit time. As temperature increases, molecules move faster, increasing Z.
- Effective Collisions: Only some collisions result in a reaction. For success, the colliding molecules must have energy ≥Ea.
- According to the Maxwell-Boltzmann distribution, a small increase in temperature substantially increases the fraction of molecules that possess enough energy to cross the activation barrier.
- Both factors contribute, but the energy factor is much more significant.
This easy difficulty chemistry question is from the chapter chemical kinetics, covering the topic of collision theory. It appeared in the 2025 exam.
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