If the rate of reaction increases by a factor of 23 when the concentration of

# If the rate of reaction increases by a factor of 23

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00510.0pointsIf the rate of reaction increases by a factorof 2.3 when the concentration of reactant in-creases by a factor of 1.5, what is the order ofthe reaction with respect to this reactant? 1.2correct2.1.53.14.35.4Explanation:006 10.0points Consider the rate constants below.Whichwould correspond to the highest order reac-tion? Units of M 2 · s 1 would correspond to a 3 rd order reaction. 007 10.0points The following data were obtained in four sep- arate experiments measuring the initial rates of the reaction A + 2 B + C products with different concentrations of reactants. Initial Initial Initial Initial Trial [A] [B] [C] rate M M M M/s × 10 2 × 10 2 × 10 3 × 10 8 1 1 . 5 2 . 0 1 . 2 4 . 0 2 3 . 0 2 . 0 1 . 2 8 . 0 3 3 . 0 2 . 0 2 . 4 8 . 0 4 1 . 5 3 . 0 3 . 6 9.0What are the exponents of [A], [B], and [C](in that order) in the rate law? 6. 1; 0; 2
cano (mc47235) – Homework 11 – sutcliffe – (51400) 3 Rate 3 Rate 2 = k [A] 1 3 [B] y 3 [C] z 3 k [A] 1 2 [B] y 2 [C] z 2 8 . 0 8 . 0 = parenleftbigg 3 . 0 3 . 0 parenrightbigg parenleftbigg 2 . 0 2 . 0 parenrightbigg y parenleftbigg 2 . 4 1 . 2 parenrightbigg z 1 = 2 0 = 2 z z = 0 Rate 4 Rate 1 = k [A] 1 4 [B] y 4 [C] 0 4 k [A] 1 1 [B] y 1 [C] 0 1 9 . 0 4 . 0 = parenleftbigg 1 . 5 1 . 5 parenrightbigg parenleftbigg 3 . 0 2 . 0 parenrightbigg y 2 . 25 = 1 . 5 y ln 2 . 25 = y ln 1 . 5 y = ln 2 . 25 ln 1 . 5 = 2 008 10.0points A hypothetical reaction A + 2 B C + D is found to be first order in A and second order in B. What are the units of k , the specific rate constant, if reaction rate is expressed in units of M/s? 1. M · s 1 2. M 2 · s 1 3. M 2 · s 1 correct 4. M 3 · s 5. M 1 · s Explanation: 009 10.0points Yes, this is the one you have to try plots for. Use any graphing program or programmable calculator if you have one. You WONT have to do this for the exam. The program should be able to give you the slope. It might not ex- actly agree with the value given in the choices here but it should be quite close.

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• Fall '10
• McCord
• Chemistry, Chemical reaction, Rate equation, Reaction rate constant, Cano