The value of K_p for the equilibrium:<br>NH₄HS(s) ⇌ NH₃(g) + H₂S(g) at a certain temperature and tot — Chemical Equilibrium Chemistry Question

💡 Solution & Explanation

Since only NH₄HS dissociates, P_NH₃ = P_H₂S. Total pressure is 2 atm, so P_NH₃ = 1 atm and P_H₂S = 1 atm. K_p = P_NH₃ × P_H₂S = 1 × 1 = 1.0 atm². Therefore, correct answer is B.