When Gaseous Carbon Monoxide and Hydrogen Are Combined in a Sealed

Multiple Choice

When gaseous carbon monoxide and hydrogen are combined in a sealed vessel and heated they will eventually form an equilibrium mixture of reactants and products according to the balanced chemical equilibrium below.CO(g) + 3H₂(g) CH₄(g) + H₂O(g)
In one such reaction 3 moles of one reactant were combined with 1 mole of the other reactant in a fixed volume vessel and heated to 1200 K.Analysis of the reaction mixture at various times gave the results below.Which component of the reaction mixture is represented by curve C?

A) hydrogen
B) carbon monoxide
C) either methane or water
D) either hydrogen or carbon monoxide
E) not enough information to decide