At Elevated Temperatures, Molecular Hydrogen and Molecular Bromine React to Partially

question 41

Multiple Choice

At elevated temperatures, molecular hydrogen and molecular bromine react to partially form hydrogen bromide: H₂ (g) + Br₂ (g) 2HBr (g)
A mixture of 0.682 mol of H₂ and 0.440 mol of Br₂ is combined in a reaction vessel with a volume of 2.00 L. At equilibrium at 700 K, there are 0.556 mol of H₂ present. At equilibrium, there are __________ mol of Br₂ present in the reaction vessel.

• A)0.000
• B)0.440
• C)0.556
• D)0.126
• E)0.314

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