#40B how do you find the overall order if there is a one half order? 40. A react
ID: 810568 • Letter: #
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#40B how do you find the overall order if there is a one half order? 40. A reaction in which A, B , and C react to form products is zero order in A , one ?half order in B , and second order in C. a. Write a rate law for the reaction. b. What is the overall order of the reaction? c. by what factor does the reaction rare change if [A] is doubled (and the other reactant concentrations are held constant)? d By what factor does the reaction rate change if [B] is doubled (and the other reactant concentrations are held constant)? e. By what factor does the reaction rate change if [C] doubled (and the other reactant concentration are held constant) ? f. By what factor does the reaction rate change if the concentrations of all three reactants are doubled ?Explanation / Answer
Reaction is:
A + B + C ----> Products
Order of reaction with respect to reactants, A is 0, B is ½, and C is 2.
a. Rate law for the reaction is,
rate = k[A]0 [B]1/2 [C]2 = k [B]1/2 [C]2
b. Overall reaction order is sum of the orders of the reactants.
Order = 0 + ½ + 2 = 5/2 = 2.5
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