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- 1. Multiple Choice
Consider the proposed mechanism shown. In the overall reaction, what are the reactants in the overall reaction?IO− + Cl− → ClO− + I−ClO− + I− → IO− + Cl−IO− + Cl−ClO− + I− - 2. Multiple ChoiceConsider the proposed mechanism shown. In the overall reaction, what are the products in the overall reaction?IO− + Cl− → ClO− + I−ClO− + I− → IO− + Cl−IO− + Cl−ClO− + I−
- 3. Multiple ChoiceConsider the proposed mechanism shown. In the overall reaction, what is the overall reaction?IO− + Cl− → ClO− + I−ClO− + I− → IO− + Cl−IO− + Cl−ClO− + I−
- 4. Multiple ChoiceConsider the mechanism shown. Which species is a catalyst and which is an intermediate, respectively?none, FNO2F, FNO2, NO2none, NO2F
- 5. Multiple ChoiceWhich species would be a catalyst in the mechanism shown?PtCOClClCO
- 6. Multiple ChoiceA reaction mechanism has several steps. The rate of the overall reaction is equal tothe rate of the slowest step.the average rates of the steps.the difference between the rate of the fastest step and the rate of the slowest step.the rate of the fastest step.
- 7. Multiple ChoiceWhich of the following describes overall orders that would be consistent with this mechanism?first order with respect to COCl, first order with respect to Cl2first order with respect to Cl2, independent of COindependent of Cl2, first order with respect to COfirst order with respect to Cl2, first order with respect to CO
- 8. Multiple ChoiceIn general a higher activation energy corresponds toa slower reaction rate.a faster reaction rate.an exothermic reaction.an endothermic reaction
- 9. Multiple ChoiceA catalyst facilitates a reaction bymaking the reaction more exothermiclowering the activation energy of the reaction.decreasing the temperature at which the reaction will proceed spontaneously.shifting the position of the equilibrium of the reaction.
- 10. Multiple Choice
Activation energy is the amount of energy required to
break the bonds between the reacting molecules
convert the reactants into the activated complex
make the reacting particles collide
form the bonds between the product molecules
- 11. Multiple Choice
The activation energy of the forward reaction is best represented by what number shown on the graph:
2
4
5
3
- 12. Multiple Choice
Adding a catalyst ___________ the activation energy.
Raises
Lowers
Doesn't affect
Inreases
- 13. Multiple Choice
A reaction has the rate law: Rate = k [A]2[B]3.
What is the order of reaction with respect to A?
1st
2nd
3rd
4th
- 14. Multiple ChoiceA reaction has the rate law: Rate = k [A][B].
What is the overall order of reaction?1st2nd3rd4th - 15. Multiple ChoiceA possible rate law for a third overall order of a reaction is __________________Rate = k [A]2[B]2Rate = k [A][B]3Rate = k [A]3 [B]Rate = k [A]2[B]
- 16. Multiple ChoiceA reaction has the rate law: Rate = k [A][B].
What will happen to the rate of reaction if the concentration of A is doubled and the concentration of B is tripled?increases by a factor of 3increases by a factor of 4increases by a factor of 5increases by a factor of 6 - 17. Multiple ChoiceThe rate law for the reaction 2NO(g) + O2(g) → 2NO2(g) is first order in O2 and third order overall. What is the rate law for the reaction?Rate = k [NO]2[O2]2Rate = k [NO]1[O2]2Rate = k [NO]2[O2]1Rate = k [2NO]2[O2]1
- 18. Multiple Choice
What is the name of k that appears in the equation used to calculate the rate of a chemical reaction?
Reaction Rate
Rate Equation
Rate Law
Rate Constant
- Answer choicesTagsAnswer choicesTags