IB practice questions (Kinetics)

Pg 137

1. D When water is produced that means neutralization has occured
2. A
3. D concentration per unit time
4. B
5. C
6. B
7. C

11. Mass of reactants, Volume, pH (1-7)

B Use of Catalyst, Temperature, Concentration

The catalyst provides an alternate path at which the activation energy is lower therefore increasing the amount particles able to react

Temperature increases the kinetic energy that each molecule possesses and therefore they are able many molecules are able to have a higher kinetic energy than the reactions activation energy. Increases collision frequency

Concentration increases the amount of molecules in the reaction and therefore provides more frequent chances of collision with other molecules to react

C1 it would stay the same, because the mixture is already in excess. The HCl is a limiting factor

C2 Stays the same because the temperature only affects the rate of the product created and not the total volume of the carbon dioxide produced. Because the mass of the reactants are the same, the concentration stayed the same