JAMB Chemistry 2011 Question 17

Question 17

Chemical Equilibrium

N2O4(g) ⇌ 2NO2(g) ΔH = +ve
In the reaction above, an increase in temperature will

  1. A.increase the value of the equilibrium constant
  2. B.decrease the value of the equilibrium constant
  3. C.increase the reactant production
  4. D.shift the equilibrium to the left
Show the answer and explanation

Answer: A (increase the value of the equilibrium constant)

Explanation

The forward reaction is endothermic, so heating favours it and K increases.