Midterm 2

Midterm 2 - Chem 6C Practice Midterm 2 Assume this to be a...

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Practice Midterm 2 Assume this to be a 70 minute exam 1. A catalyst facilitates a reaction by a) shifting the position of the equilibrium of the reaction. b) lowering the activation energy of the reaction. c) making the reaction more exothermic. d) increasing the activation energy for the reverse reaction. e) decreasing the temperature at which the reaction will proceed spontaneously. 2. For a second-order reaction, a straight line is obtained from a plot of a) [A] vs. t b) ln(1/ t ) vs. [A] c) ln( t ) vs. [A] d) 1/[A] vs. t e) ln[A] vs. t 3. If the rate of a reaction increases by a factor of 9 when the concentration of reactant increases by a factor of 3, the order of the reaction with respect to this reactant is a) 2 b) 3 c) 9 d) 4 e) 1 4. Given that the rate law for the decomposition of ozone 2O 3 (g) 3O 2 (g) is rate = k [O 3 ] 2 [O 2 ] –1 , then the overall order of the reaction is a) 1 b) 2 c) 3 d) –1 e) 0 5. For the reaction 2A + B products determine the rate law for the reaction given the following data: Initial Concentration, M Initial Rate, M·s –1 A B 0.10 0.10 2.0 × 10 –2 0.20 0.10 8.0 × 10 –2 0.30 0.10 1.8 × 10 –1
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Midterm 2 - Chem 6C Practice Midterm 2 Assume this to be a...

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