Unit 7.3: Reaction Quotient and Equilibrium Constant

Write K_c, K_p, Q_c, Q_p expressions for a reversible reaction.

• Write the equilibrium expression in terms of partial pressures for N_2(g) + 3H_2(g) ⇌ 2NH_3(g) .
• The reaction A_(aq) + 2B_(aq) ⇌ 2C_(s) + D_(aq) has not yet reached equilibrium. Write the appropriate reaction quotient or equilibrium expression.
• Explain the difference between Q and K.