1 .		Which three factors affect the rate of a chemical reaction?
2 .		In the reaction 2A + B --> 2C + D, -[A]/t is found to be 5.0 M min-1. What is the rate of change of B?
3 .		Consider the reaction in which ammonia is synthesized from nitrogen and hydrogen gases: N2(g) + 3H2(g) ---> 2NH3(g) How is the rate of formation of ammonia related to the rate of consumption of hydrogen?
4 .		Use the information below to determine the order of the reaction in reactant A. A + B --> P Trial [A], M [B], M Rate 1 0.273 0.763 2.83 2 0.273 1.526 2.83 3 0.819 0.763 25.47
5 .		Which one of the following is incorrect for the reaction A --> B?
6 .		The decomposition of nitrogen dioxide to nitrogen and oxygen is second-order with a rate constant k = 12.5 M-1 s-1. What is the half-life for the reaction if [NO2]0 = 0.00260 M?
7 .		Which of the following graphs is linear for A --> products?
8 .		For the reaction A --> B, the activation energy is Ea = 125 kJ/mol and the heat of reaction, H = 50. kJ/mol. What is the Ea for the reverse reaction in kJ/mol?
9 .		Which statement is not correct regarding the function of a catalyst?
10 .		Refer to the equation below, where two mechanisms are proposed for the reaction of nitrogen dioxide with carbon monoxide: NO2(g) + CO(g) --> CO2(g) + NO(g) Mechanism I: NO2(g) + CO(g) --> CO2(g) + NO(g) (one step) Mechanism II: NO2(g) + NO2(g) --> NO3(g) + NO(g) (slow) NO3(g) + CO(g) --> CO2(g) + NO2(g) (fast) What is the predicted rate law for Mechanism II?
11 .		Which of the following will lower the activation energy for a reaction?
12 .		Given the following mechanism, which of the species below is a catalyst in the formation of XO2 from X and O2? X + YO2 --> XO + YO XO + YO2 --> XO2 + YO YO + O2 --> YO2 + O YO + O --> YO2
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