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igomit [66]
3 years ago
13

The reaction 2no2 ? 2no + o2 follows second-order kinetics. at 300 °c, [no2] drops from 0.0100 m to 0.00650 m in 100.0 s. the ra

te constant for the reaction is ________ m-1s-1.
Chemistry
1 answer:
Ulleksa [173]3 years ago
4 0
For a second order kinetics, the reaction rate expression would be

-r = -dCa / dt = kCa^2    where k is the reaction constant and Ca is the concentration of reactant A.

Integrating this from Cao to Caf, will have the expression,

1/Caf - 1/Cao = kt

Substituting the given values and calculating for k,

1/0.00650 - 1/0.0100 = k(100)
k = 0.538 / M-s
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