1. Tro IC3 1.Increasing temperature 2.Decreasing temperature 3.Increasing reactant concentration 4.Increasing the surface area of a solid reactant 5.All of the above 15.1 Which of the following changes would affect the rate of a chemical reaction?

2. Tro IC3 1.Increasing temperature 2.Decreasing temperature 3.Increasing reactant concentration 4.Increasing the surface area of a solid reactant 5.All of the above 15.1 Which of the following changes would affect the rate of a chemical reaction?

3. Tro IC3 1.Reactants must collide with enough energy to be able to form products. 2.Reactants must collide with low energy to be able to form products. 3.Reactant collisions are not required to be able to form products. 4.Reactant collisions are dependent on the nature of products. 5.All of the above 15.2 Which of the following describes collision theory?

4. Tro IC3 1.Reactants must collide with enough energy to be able to form products. 2.Reactants must collide with low energy to be able to form products. 3.Reactant collisions are not required to be able to form products. 4.Reactant collisions are dependent on the nature of products. 5.All of the above 15.2 Which of the following describes collision theory?

5. Tro IC3 1.Independent of the orientation of the colliding molecules 2.The amount of reactant formed over a period of time 3.The amount of product formed over a period of time 4.Independent of the temperature 5.None of the above 15.3 The rate of a chemical reaction is:

6. Tro IC3 1.Independent of the orientation of the colliding molecules 2.The amount of reactant formed over a period of time 3.The amount of product formed over a period of time 4.Independent of the temperature 5.None of the above 15.3 The rate of a chemical reaction is:

7. Tro IC3 1.The concentrations of reactants and products are equal. 2.The rate of the forward reaction is greater than that of the reverse reaction. 3.The rate of the reverse reaction is greater than that of the forward reaction. 4.The rates of the reverse reaction and the forward reactions are zero. 5.The rates of the forward and reverse reactions are equal. 15.4 Which statement describes chemical equilibrium?

8. Tro IC3 1.The concentrations of reactants and products are equal. 2.The rate of the forward reaction is greater than that of the reverse reaction. 3.The rate of the reverse reaction is greater than that of the forward reaction. 4.The rates of the reverse reaction and the forward reactions are zero. 5.The rates of the forward and reverse reactions are equal. 15.4 Which statement describes chemical equilibrium?

9. Tro IC3 1.It shifts to the right. 2.It shifts to the left. 3.It triples. 4.It halves. 5.Nothing changes. 15.15 What happens to the equilibrium position if the amount of hydrogen is increased in the following reaction: N 2 (g) + 3H 2 (g)  2NH 3 (g)?

10. Tro IC3 1.It shifts to the right. 2.It shifts to the left. 3.It triples. 4.It halves. 5.Nothing changes. 15.15 What happens to the equilibrium position if the amount of hydrogen is increased in the following reaction: N 2 (g) + 3H 2 (g)  2NH 3 (g)?

11. Tro IC3 1.It shifts to the right. 2.It shifts to the left. 3.It triples. 4.It halves. 5.There is no change. 15.16 What happens to the equilibrium position if the pressure is increased in the following reaction: N 2 (g) + 3H 2 (g)  2NH 3 (g)?

12. Tro IC3 1.It shifts to the right. 2.It shifts to the left. 3.It triples. 4.It halves. 5.There is no change. 15.16 What happens to the equilibrium position if the pressure is increased in the following reaction: N 2 (g) + 3H 2 (g)  2NH 3 (g)?

13. Tro IC3 1.Warm 2.Cool 3.Wet 4.Dry 5.No change 15.17 An exothermic reaction is carried out in a flask. How does the flask feel?

14. Tro IC3 1.Warm 2.Cool 3.Wet 4.Dry 5.No change 15.17 An exothermic reaction is carried out in a flask. How does the flask feel?

15. Tro IC3 1.It shifts to the right. 2.It shifts to the left. 3.It triples. 4.It halves. 5.There is no change. 15.18 The following reaction is endothermic: N 2 (g) + 3H 2 (g)  2NH 3 (g) What happens to the equilibrium position when the temperature is decreased?

16. Tro IC3 1.It shifts to the right. 2.It shifts to the left. 3.It triples. 4.It halves. 5.There is no change. 15.18 The following reaction is endothermic: N 2 (g) + 3H 2 (g)  2NH 3 (g) What happens to the equilibrium position when the temperature is decreased?

17. Tro IC3 1.It shifts to the right. 2.It shifts to the left. 3.It triples. 4.It halves. 5.There is no change. 15.19 What happens to the equilibrium position if the volume is increased in the following reaction: SO 2 (g) + NO 2 (g)  SO 3 (g) + NO(g)?

18. Tro IC3 1.It shifts to the right. 2.It shifts to the left. 3.It triples. 4.It halves. 5.There is no change. 15.19 What happens to the equilibrium position if the volume is increased in the following reaction: SO 2 (g) + NO 2 (g)  SO 3 (g) + NO(g)?

19. Tro IC3 1.Low pressure, low temperature 2.High pressure, high temperature 3.High pressure, low temperature 4.Low pressure, high temperature 5.None of the above 15.20 What reaction conditions would favor maximum conversion of reactant to products in the following reaction: CO(g) + 3H 2 (g)  CH 4 (g) + H 2 O(g) + heat?

20. Tro IC3 1.Low pressure, low temperature 2.High pressure, high temperature 3.High pressure, low temperature 4.Low pressure, high temperature 5.None of the above 15.20 What reaction conditions would favor maximum conversion of reactant to products in the following reaction: CO(g) + 3H 2 (g)  CH 4 (g) + H 2 O(g) + heat?

21. Tro IC3 1.Increasing the concentrations of the reactants 2.Adding a catalyst 3.Increasing the reaction temperature 4.Lowering the activation energy of the reaction 5.All of the above 15.24 Which of the following can speed up a chemical reaction?

22. Tro IC3 1.Increasing the concentrations of the reactants 2.Adding a catalyst 3.Increasing the reaction temperature 4.Lowering the activation energy of the reaction 5.All of the above 15.24 Which of the following can speed up a chemical reaction?

23. Tro IC3 1.It changes the position of the equilibrium. 2.It changes the stoichiometry of the overall reaction. 3.It increases the activation energy of the reaction. 4.It provides another pathway for the reaction, one with a lower the energy barrier between the reactants and products. 5.Two of the above 15.25 How does a catalyst speed up a chemical reaction?

24. Tro IC3 1.It changes the position of the equilibrium. 2.It changes the stoichiometry of the overall reaction. 3.It increases the activation energy of the reaction. 4.It provides another pathway for the reaction, one with a lower the energy barrier between the reactants and products. 5.Two of the above 15.25 How does a catalyst speed up a chemical reaction?