Collision Theory

Experiment I (zinc powder + hydrochloric acid)
Experiment II (zinc granules + hydrochloric acid)
1) Rate of reaction of experiment I is higher than experiment II
2) Exp I using zinc powder has a smaller size of zinc compare to Exp II
3) Smaller size of zinc has larger total surface area in Exp I.
4) Frequency of collision between zinc and hydrogen ion higher in Exp I
5) Frequency of effective collision between zinc and hydrogen ion higher in Exp I.

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