For Which One of the Following Reactions Will ΔH Be

Multiple Choice

For which one of the following reactions will ΔH be approximately (or exactly) equal to ΔE?

A) H ₂( g) + Br ₂( g) → 2HBr( g)
B) H ₂O( l) → H ₂O( g)
C) CaCO ₃( s) → CaO( s) + CO ₂( g)
D) 2H( g) + O( g) → H ₂O( l)
E) CH ₄( g) + 2O ₂( g) → CO ₂( g) + 2H ₂O( l)