Which of the Following Statements Is True Concerning the Decomposition

question 108

Multiple Choice

Which of the following statements is true concerning the decomposition of liquid water to form hydrogen gas and oxygen gas?
2H₂O(l) → 2H₂(g) + O₂(g)

• A)ΔH is greater than ΔU because the pressure is constant.
• B)ΔH is less than ΔU because of the pressure-volume work done by the gaseous products.
• C)ΔH is less than ΔU because the atmosphere does pressure-volume work on the gaseous products.
• D)ΔH equals ΔU because both are state functions.
• E)ΔH is greater than ΔU because of the pressure-volume work done by the gaseous products.

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