試題詳解

15. CO₂ can be hydrogenated into methanol through flowing a gas mixture (molar ratio between H₂ and CO₂ = 3) into a catalyst bed at 1 bar. It is an exothermic reaction whose equation is shown below. Choose the incorrect statement.
CO_2(g)+3H_2(g)→CH₃OH(g)+H₂O_(g)
(A) The yield of methanol cannot reach 100% given any reaction condition.
(B) The extent of reaction (ξ) at equilibrium can be increased by pressurizing the reactor.
(C) Adding an inert gas into the mixture at fixed pressure will reduce ξ at equilibrium.
(D) Decreasing reaction temperature increases ξ at equilibrium.
(E) The equilibrium conversion can be calculated by solving K_eg =ξ² (4-2ξ)²/(3-3ξ)³