Catalysts and Inhibitors and Endothermic and Exothermic
Questions about catalysts and inhibitors
Provide Name HERE
1. What do the points on the Graph below represent?
2. What point on the graph represents the portion that is lowered by a catalyst so that a reaction can happen more quickly?
3. Which of the following statements regarding the use of catalysts is false?
a) Catalysts lower the activation energy for a reaction
b) Catalysts increase the proportion of molecules that possess sufficient energy to clear the activation energy barrier
c) Catalysts increase the number of reactions that can happen spontaneously
d) Catalysts provide an alternative reaction pathway from reactant to product
4. Which is the best definition of activation energy?
a the energy required to end a chemical reaction
b the energy required to break the bonds of reactant molecules
c the energy required for a reaction to occur
d the energy required to re-form bonds in product molecules
5. If the activation energy required for a chemical reaction were reduced, what would happen to the rate of the reaction?
a. Rate would increase
b. rate would decrease
c. Rate would stay the same
d. Rate would go up and down
6. Which of the following would cause a reaction to proceed more slowly?
a. Add an inhibitor to the reaction
b. Add more reactants to the reaction
c. Add a catalyst to the reaction
d. Take away the reactants from a reaction
e. Two of the above
7. What type of reactions is represented by the graph below Endothermic or Exothermic? Explain why.
8. What type of reactions is represented by the graph below Endothermic or Exothermic? Explain why.
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