As the concentration of reactant increases, the rate of reaction also increases, it is because:
Correct answer: C. Collisions frequency increases
- A. K.E. increases in molecules
- B. Oscillation increases between molecules
- C. Collisions frequency increases
- D. Temperature of molecules increases
Explanation
Collisions frequency increases: The frequency of collisions between reactant particles is the number of collisions that occur per unit time. The frequency of collisions increases with increasing concentration because there are more reactant particles present in the same volume. This is the main reason why the rate of reaction increases with increasing concentration.
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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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