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【单选题】
某电池的电池反应可写成：(1) H2(g) + 1/2O2(g) → H2O(l) (2) 2H2(g) + O2(g) → 2H2O(l) 用 E1，E2表示相应反应的电动势，ΔrGm,1，ΔrGm,2表示相应反应的摩尔反应吉布斯自由能变，下列各组关系正确的是（ ）A.
E 1 ＝ E 2 Δ rGm ,1 ＝ Δ rGm ,2
B.
E 1 ≠ E 2 Δ rGm ,1 ＝ Δ rGm ,2
C.
E 1 ＝ E 2 Δ rGm ,1 ≠ Δ rGm ,2
D.
E 1 ≠ E 2 Δ rGm ,1 ≠ Δ rGm ,2
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举一反三
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