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JAMB Chemistry 1982 Question 45

Question 45

Chemical Equilibrium

In the reaction N2(g) + O2(g) ⇌ 2NO(g) an increase in the total pressure will

  1. A.cause less nitrogen to be produced in the equilibrium mixture
  2. B.cause less nitric oxide to be produced in the equilibrium mixture
  3. C.cause more nitric oxide to be produced in the equilibrium mixture
  4. D.cause more oxygen to be produced in the equilibrium mixture
  5. E.have no effect.
Show the answer and explanation

Answer: E (have no effect.)

Explanation

There are 2 moles of gas on each side, so changing the pressure does not shift the equilibrium.