Multiple choice

In a certain chemical reaction, the number of moles of products are lesser than the number of reactants. What will happen if the pressure on the system is increased?

  1. Equilibrium will shift in the backward direction forming more reactants so as to minimise the extent of formation of products.

  2. Equilibrium will shift toward in the direction of the formation of products so as to minimise the applied pressure.

  3. Equilibrium remains unaffected by increasing the pressure.

  4. It cannot be predicted.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

As per the Le Chatelier's principle, the increase of external pressure shifts the equilibrium in a direction which lowers the pressure, i.e. the equilibrium shifts in a direction that forms lesser number of moles of the gas.

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