CH-1683
Surface area
Chemistry · Secondary 4 · Medium · Surface area
A reaction between marble chips and dilute hydrochloric acid is repeated using powdered marble instead of chips. Which statement explains the change in rate of reaction?
- Rate increases because surface area of marble is larger.
- Rate decreases because fewer collisions occur each second.
- Rate is unchanged because concentration of acid is the same.
- Rate decreases because activation energy becomes higher.
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