Moderate

Correct relationship b/w Ke and Kp can be written as:

Correct answer: B. Kp=Ke (RT)∆n

  • A. Kp=Ke (R)∆n
  • B. Kp=Ke (RT)∆n
  • C. Ke=Kp (RT)∆n
  • D. Kp=Ke (R/N)∆n

Explanation

This equation simply converts between the concentration form of the equilibrium constant and the pressure form, by using the ideal gas law and accounting for the difference in the number of moles of gas between products and reactants. The (RT)Δn factor adjusts for how much "space" the gas molecules take up in pressure terms versus concentration terms.

Last updated

About Chemical Equilibrium

Reversible reactions reach dynamic equilibrium when forward and reverse rates become equal, and Le Chatelier's principle predicts the effect of changing concentration, pressure or temperature. The chapter also covers solubility product, the common ion effect, buffer action and the conditions used in Haber's process, with equilibrium shifts distinguished from changes in the equilibrium constant.

Practise Chemical Equilibrium

625 free Chemical Equilibrium MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.

Exams that ask Chemistry questions like this

Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.

Related questions