Essential Chemistry for IGCSE - Rate Of Reaction (Section 3 - No. 29)
What is the relationship between concentration of a reactant and the reaction rate, according to the collision theory?
Increased concentration decreases the reaction rate because it dilutes the reactants.
The concentration of a reactant has no effect on the rate.
Increased concentration increases the reaction rate because more collisions occur.
Increased concentration decreases the reaction rate because more particles block the reaction
Explanation
More reactant particles mean more frequent collisions, hence speeding up the reaction.
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