Chapter 8: 1. Which of the following would increase the rate of a reaction? a. decreasing the temperature b. decreasing the amount of reactants c. decreasing both the temperature and amount of reatants d. adding a catalyst

2. The amount of energy required for a reactive collision to occur between two reactants is referred to as a. the heat energy of reaction. b. the activation energy c. the kinetic energy d. the transition state energy

3. What can be said about the reactants and products of a reaction that has reached a state of dynamic equilibrium? a. the concentration of reactants is less than the concentration of products b. the rate of reaction for the formation of products is equal to the rate of reaction for the formation of products c. the reaction has switched directions d. none of the above

4. The reaction of A and B to form products C and D is exothermic 4. The reaction of A and B to form products C and D is exothermic. According to Le Chatelier’s Principle, what will happen if the temperature of the reaction is increased? a. The reaction will increase production of products. b. The reaction will give off more heat. c. More reactants will be produced. d. The reaction will slow down.

5. The equilibrium constant for the conversion of A to B (A  B) is 0 5. The equilibrium constant for the conversion of A to B (A  B) is 0.5. What can be said about the relative amounts of reactant and product at equilibrium? a. There is more product present than reactant. b. There is more reactant present than product. c. The amounts of reactant and product are equal. d. The amounts of reactant and product present will depend on the reaction rate.