Equal masses of calcium trioxocarbonate(iv) were added to dilute hydrochloric acid at the temperature specified. Under which of the following conditions would the reaction be slowest?
A. Calcium trioxocarbonate ( iv ) chips a 20°C B. CalcIum trioxocarbonate (IV) chips at 40°C C. Calcium trioxocarbonate (IV) powder at 20'C D. Calcium trioxocarbonate (IV) powder at 40'C
Correct Answer: A
Explanation
- Increasing the surface area of a reactant increases the frequency of collisions and increases the reaction rate. - Chips have a lower surface area compared to powder, so it accounts for the slowest
