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JAMB Chemistry 2022 Question 25

Question 25

Chemical Equilibrium

aA + bB ⇌ cC + dD
In the above equation, the equilibrium constant is expressed as

  1. A.[A][B]/[C][D]
  2. B.[A]a[B]b/[C]c[D]d
  3. C.[C][D]/[A][B]
  4. D.[C]c[D]d/[A]a[B]b
Show the answer and explanation

Answer: D ([C]c[D]d/[A]a[B]b)

Explanation

K is products over reactants, each concentration raised to the power of its coefficient in the balanced equation.