What Is the Reaction for the Standard Enthalpy of Formation

question 24

Multiple Choice

What is the reaction for the standard enthalpy of formation for HCl(g) ?

• A) H⁺(aq) + Cl-(aq) → HCl(g)
• B) 1/2 H₂(g) + 1/2Cl₂(l) → HCl(s)
• C) NH₃(g) + Cl₂(g) → NH₂Cl(g) + HCl(g)
• D) 1/2 H₂(g) + 1/2Cl₂(g) → HCl(g)
• E) 1/2 H₂(l) + 1/2Cl₂(g) → HCl(l)

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