Practice question

Given: For C(s) + H₂O(g) <=> CO(g) + H₂(g), K_p = 0.4 atm at 1000 K. If initial p_{H₂O = 1 atm, what is p_{CO at equilibrium? These values define the system as per NCERT data. Formula: Let p_{CO = p_{H₂ = x, p_{H₂O = 1 - x. This is standard NCERT relation. Substitution & Calculation: K_p = fracp_{CO · p_{H₂p_{H₂O = x²/1 - x = 0.4 . x² = 0.4 - 0.4x, x² + 0.4x - 0.4 = 0, x approx 0.44 atm. Result: The computed value matches expected outcome and confirms correct choice as per NCERT.