Consider This Reaction at Equilibrium at a Total Pressure: 2H₂O(g)

question 98

Multiple Choice

Consider this reaction at equilibrium at a total pressure: 2H₂O(g) + O₂(g) 2H₂O₂(g)
Suppose the volume of this system is twice its initial volume and then equilibrium is reestablished. The new equilibrium total pressure will be

• A) more than half the total initial pressure.
• B) twice the total pressure.
• C) less than half the total initial pressure.
• D) unchanged.
• E) exactly one half of the initial total pressure.