Question

Write any two differences between Rate of reaction and Rate constant.

Hint:

The rate constant is specific to the reaction and temperature, while the rate of reaction is influenced by factors like concentration and temperature.

Answer 1

Step 1: Difference between Rate of Reaction and Rate Constant.
1. Rate of reaction is the change in concentration of a reactant or product per unit time during a chemical reaction. It is expressed in terms of concentration/time (e.g., mol/L·s).
Rate constant (k) is a proportionality constant in the rate law equation that relates the rate of reaction to the concentration of reactants. It depends on temperature and the nature of the reaction but is independent of concentration.
2. Rate of reaction varies with the concentration of the reactants and temperature, while Rate constant is constant at a given temperature for a specific reaction and does not change with the concentration of reactants.

Step 2: Conclusion.
The rate of reaction is variable and depends on conditions, while the rate constant is a fixed value at a given temperature for a specific reaction.