What is the overall order of this rate equation? Rate =k[H2][NO2]2
Correct answer: C. 3
- A. 1
- B. 2
- C. 3
- D. 4
Explanation
The overall order of a rate equation is determined by adding up the individual orders of all the reactants involved. In this case, the rate equation is given as: Rate = k[H2][NO2]² The individual orders for the reactants are: [H2] has an order of 1. [NO2] has an order of 2. To find the overall order, we add up these individual orders: 1+2 = 3 Therefore, the overall order of the rate equation is 3.
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Reaction kinetics relates reaction rate to concentration, temperature, surface area and catalysts. Questions cover rate laws, reaction order, rate constants, activation energy and the activated complex, including how a catalyst lowers the activation energy without changing the overall energy change or equilibrium position.
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