Question detail
Explain why most collisions between reactant particles do not lead to a reaction.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Kinetics
Question
Explain why most collisions between reactant particles do not lead to a reaction.
Answer
Most collisions do not lead to a reaction because the particles often do not have sufficient energy to overcome the activation energy barrier. This means that even if they collide, they lack the necessary energy to break existing bonds and form new ones. As a result, the reaction does not occur, leading to a lower rate of reaction.
Explanation
This answer is strong because it clearly identifies the insufficient energy as the cause, explains the mechanism of activation energy, and states the effect of not forming products. It tests the understanding of collision theory and the concept of activation energy.
Common mistake
Collisions Not Leading to Reaction
Students often state that most collisions do not lead to a reaction without explaining why.
To correct this, students should explain that the cause is insufficient energy in most collisions. The mechanism is that only collisions with energy equal to or greater than the activation energy can overcome the energy barrier for reaction. The effect is that these collisions do not result in a reaction, leading to the consequence that reaction rates remain low.
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