November 2018 1 1K Report
Diberikan dua persamaan reaksi pembakaran berikut.
2Fe (s) + 3/2 O2 (g) → Fe2O3 (s) ΔH = -840 kJ
2Al (s) + 3/2 O2 (g) → Al2O3 (s) ΔH = -1.680 kJ

Reaksi 2 Al (s) + Fe2O3 (s) → 2Fe (s) + Al2O3 (s) mempunyai ΔH sebesar .... kJ
a. -2.520
b. -1.520
c. -840
d. +840
e. +2.520
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