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Multiple Choice In which of the following is ΔH°rxn = ΔH°f at 1 atm and 298 K?
A
C (s, graphite) + 2 H2 (g) + ½ O2 (g) → CH3OH (l)
B
2 C (s, graphite) + 4 H2 (g) + O2 (g) → 2 CH3OH (l)
C
C (s, graphite) + H2 (g) + O2 (g) → CH3OH (l)
D
C (s, graphite) + 2 H2 (g) + ½ O2 (l) → CH3OH (l)
E
C (s, graphite) + 4 H (g) + ½ O2 (g) → CH3OH (l)
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