The specific rate constant is equal to rate of reaction when concentration of reactants are taken as unity. Which of the following factors affects specific rate constant?
Correct answer: C. Temperature
- A. Concentration of reactants
- B. Pressure
- C. Temperature
- D. Surface area
Explanation
Temperature has a significant impact on the specific rate constant. The Arrhenius equation describes how the rate constant changes with temperature. Generally, an increase in temperature leads to an increase in the rate constant and, consequently, an increase in the reaction rate. This is due to the increased kinetic energy of molecules at higher temperatures, leading to more frequent and energetic collisions.
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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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