In a rate equation, rate=k[A] [B], the reaction is
Correct answer: C. Second order
- A. Zero order
- B. First order
- C. Second order
- D. Third order
Explanation
IThe rate equation rate = k[A][B] indicates that the reaction rate depends on the concentrations of two reactants, A and B. This is a characteristic of a second-order reaction.In a second-order reaction, the rate is proportional to the product of the concentrations of two reactants. This can be further classified into two types:- Second-order first-degree (rate = k[A][B], where A and B are different reactants)- Second-order second-degree (rate = k[A]^2, where A is the only reactant)
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About Reaction Kinetics
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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