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Topic 9 – Kinetics and Equilibrium

2. Factors affecting reaction rate: Recalling concept facts

1. As the temperature of a reaction increases, the rate of the reaction
1) Increases 2) Decreases 3) Remains the same

2. When surface area of a reacting solid is increased, the rate at which the solid reacts will
1) Decrease 2) Increase 3) Remain the same

3. As the concentration of a reacting substance decreases, the rate of the reaction generally
1) Increases 2) Decreases 3) Remains the same

4. Adding a catalyst to a reaction will cause the rate of a reaction to 3) Remain the same
1) Increase

2) Decrease



5. As the temperature of a reaction decreases, the rate of the reaction will
1) Remain the same 2) Increase 3) Decrease
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6. When compared to reactions of covalent substances, the rate of reactions for ionic solutions is usually
1) Faster 2) Slower 3) Remains the same

7. As the number of liters per mole of a reactant in a reaction decreases, the number of collisions
between reacting particles 2) Increases 3) Decreases
1) Remains the same

8. Which conditions will increase the rate of a chemical reaction?
1) Decreased temperature and decreased concentration
2) Decreased temperature and increased concentration
3) Increased temperature and decreased concentration
4) Increased temperature and increased concentration

9. Increasing the concentration of a reaction
1) Increases the reaction rate because there will be less effective collisions between particles
2) Increases the reaction rate because there will be more effective collisions between particles
3) Decreases the reaction rate because there will be less effective collisions between particles
4) Decreases the reaction rate because there will be more effective collisions between particles

10. Increasing temperature will
1) Increase reaction rate because of an increase in frequency of effective collisions
2) Increase reaction rate because of a decrease in frequency of effective collisions

3) Decrease reaction rate because of an increase in frequency of effective collisions
4) Decrease reaction rate because of a decrease in frequency of effective collisions

11. Increasing temperature speeds up a reaction by increasing
1) The effectiveness of collisions, only
2) The frequency of collision, only
3) Both the effectiveness and the frequency of the collisions
4) Neither the effectiveness nor the frequency of the collisions

12. When pressure on a reaction that involve gases is increased, the rate of the reaction will
1) Decrease because there is a decrease in concentration
2) Decrease because there is an increase in concentration
3) Increase because there is a decrease in concentration
4) Increase because there is an increase in concentration

13. When the surface area of reacting particles is decreased, there will be
1) An increase in reaction rate because of more collision
2) An increase in reaction rate because of less collision
3) A decrease in reaction rate because of more collision
4) A decrease in reaction rate because of less collision

14. When a catalyst is added to a reaction, the reaction rate is increased because the catalyst

3) Increases potential energy of the reactants
1) Increases activation energy
2) Decreases activation energy 4) Decreases potential energy of the reactants

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