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NEET · Chemistry · STD 11 - 6.1. Equilibrium - 1 (chemical Equilibrium)

For the reversible reaction, \(N_{2(g)} + 3H_{2(g)} \rightleftharpoons 2NH_{3(g)} + \) heat The equilibrium shifts in forward direction

  1. A by increasing the concentration of \(NH_{3(g)}\)
  2. B by decreasing the pressure
  3. C by decreasing the concentrations of \(N_{2(g)}\) and \(H_{2(g)}\)
  4. D by increasing pressure and decreasing temperature.
Verified Solution

Answer & Solution

Correct Answer

(D) by increasing pressure and decreasing temperature.

Step-by-step Solution

Detailed explanation

Any change in the concentration, pressure and temperature of the reaction results in change in the direction of equilibrium. This change in the direction of equilibrium is governed by Le-Chatelier's principle. According to Le-Chatellier's principle, equilibrium shifts in die opposite direction to undo the change. \(\mathrm{N}_{2}(\mathrm{g})+3 \mathrm{H}_{2}(\mathrm{g}) \rightleftharpoons 2 \mathrm{NH}_{3}(\mathrm{g})+\mathrm{Heat}\)