Which of the following is NOT true about rate of reaction?
Correct answer: B. Constant quantity
- A. Depends on reactant concentration
- B. Constant quantity
- C. Changes with time
- D. Units are mol/dm³s
Explanation
The rate of reaction changes with time and is dependent on reactant concentration, temperature and presence of a catalyst. It is therefore not a constant quantity.
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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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