試題詳解

1. Equimolar amounts of the gases N₂ and H₂ are mixed in a closed container fitted with a piston (allowing the volume of the container to change, thus keeping the pressure constant). Calculate the ratio of the final volume of the container to the initial volume of the container when the reaction N₂ + 3H₂ → 2NH₃ goes to completion.
(A)2/3
(B)3/2
(C)1
(D)1/3
(E)none of these