The rate of which reaction increases four times by doubling concentration(s) of reactant(s)?
Correct answer: B. Second order
- A. First order
- B. Second order
- C. Third order
- D. Zero order
Explanation
In a second-order reaction, the rate of the reaction is directly proportional to the square of the concentration of the reactant. This means that if you double the concentration of the reactant, the rate of the reaction will increase by a factor of 2² = 4.
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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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