Moderate

In Kp= KC (RT)∆n, ∆n may have

Correct answer: D. either of these

  • A. Positive values
  • B. Zero
  • C. Negative values
  • D. either of these

Explanation

Option D is correct.Yes, ∆n in Kp = Kc (RT) ∆n ∆n may have: 1. Positive values 2. Zero values 3. Negative values The expression for Kp, the equilibrium constant in terms of partial pressures, is: Kp = Kc(RT)^(∆n) where Kc is the equilibrium constant in terms of concentrations, R is the gas constant, T is the temperature, and ∆n is the difference between the number of moles of gas on the reactants side and the number of moles of gas on the products side. ∆n can have positive, negative, or zero values. If ∆n is positive, then there are more moles of gas on the product side than on the reactants side. In this case, Kp will be greater than Kc. If ∆n is negative, then there are more moles of gas on the reactant's side than on the product's side. In this case, Kp will be less than Kc. If ∆n is zero, then the number of moles of gas on the reactant's side and the product's side is the same. In this case, Kp will be equal to Kc.

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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.

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