When Gaseous Carbon Monoxide and Hydrogen Are Combined in a Sealed

question 73

Multiple Choice

When gaseous carbon monoxide and hydrogen are combined in a sealed vessel and heated they will eventually form an equilbrium 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 B?

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

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