Question

Which of the following statements is true about the equilibrium constant and rate constant of a single-step chemical reaction?

• A. Equilibrium constant may increase or decrease, but rate constant always increases with temperature.
• B. Both equilibrium constant and rate constant increase with temperature
• C. Rate constant may increase or decrease, but equilibrium constant always increases with temperature.
• D. Both equilibrium constant and rate constant decrease with temperature

Answer 1

The Correct Option is A

• The rate constant (k) is governed by the Arrhenius equation:
• The equilibrium constant (K) depends on the reaction’s enthalpy change (\(\Delta H\)):
  Thus, the equilibrium constant can either increase or decrease depending on the reaction’s nature, but the rate constant always increases with temperature.