JEE Main Chemistry question
Partial pressures of CH₃OH(g), CO(g) and H₂(g) at equilibrium for CO(g)+2H₂(g)⇌CH₃OH(g) are 2.0, 1.0 and 0.1 atm respectively at 427°C. Kp for decomposition of CH₃OH to CO and H₂ is:
Answer: (D)
Solution
Kp(formation) = 2.0/(1.0×0.1²) = 200. Kp(decomposition) = 1/200 = 5×10⁻³ atm².