Identify the correct formula to calculate the rate of reaction.
Correct answer: A. Change in concentration of substance/Time taken for the change
- A. Change in concentration of substance/Time taken for the change
- B. Time taken for the change+ Change in concentration of substance
- C. Time taken for the change+ Change in concentration of substance x 100
- D. Time taken for the change x Change in concentration of substance
Explanation
The rate measures how fast a reaction occurs, which means we need to determine how much the concentration of a reactant or product changes per unit of time.Dividing the change in concentration by time gives the rate in correct units (e.g., mol/L·s), showing how quickly reactants are consumed or products are formed.
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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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