For the reaction: NH₂COONH₄(s) ⇌ 2NH₃(g) + CO₂(g), K_p = 3.2 × 10⁻⁵ atm³. The total pressure of the — Chemical Equilibrium Chemistry Question

💡 Solution & Explanation

Let P_CO₂ = p. Then P_NH₃ = 2p. K_p = (2p)²(p) = 4p³ = 3.2 × 10⁻⁵. p³ = 8.0 × 10⁻⁶ => p = 2.0 × 10⁻² = 0.02 atm. Total pressure = 3p = 3 × 0.02 = 0.06 atm. Therefore, correct answer is C.