Question

Explain why pure liquids and solids can be ignored while writing the equilibrium constant expression?

The equilibrium constant expression for a gas reaction is, Kc = [NH3]4[O2]5 / [NO]4[H2O]6. Write the balanced chemical equation corresponding to this expression.

Does the number of moles of reaction products increase, decrease or remain same when each of the following equilibria is subjected to a decrease in pressure by increasing the volume?

Which of the following reactions will get affected by increasing the pressure? Also, mention whether change will cause the reaction to go into forward or backward direction.