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The rate of constatnt depends on...

The rate of constatnt depends on

A

temperature

B

pressure

C

extent of reaction

D

Initial concentraton of the rectant

Text Solution

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The correct Answer is:
To determine what the rate constant (k) of a reaction depends on, we can follow these steps: ### Step 1: Understand the Rate Constant The rate constant (k) is a proportionality factor in the rate equation of a chemical reaction. It relates the rate of the reaction to the concentrations of the reactants. ### Step 2: Identify Factors Affecting the Rate Constant The rate constant is influenced by several factors, but the most significant one is temperature. ### Step 3: Analyze the Effect of Temperature As temperature increases, the kinetic energy of the molecules increases, leading to more frequent and effective collisions between reactant molecules. This generally increases the rate constant. ### Step 4: Consider Other Factors While other factors such as pressure, concentration, and extent of reaction can affect the rate of reaction, they do not affect the rate constant itself. The rate constant remains constant for a given reaction at a specific temperature. ### Step 5: Conclusion Thus, the rate constant depends solely on temperature. ### Final Answer The rate constant depends only on temperature. ---
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