問題詳情
3. 已知:(1) Cr2O3(s) + 2 Al(s) → 2 Cr(s) + Al2O3(s),ΔH= -m kJ (2) Fe2O3(s) + 2 Al(s) → 2 Fe(s) + Al2O3(s),ΔH= -n kJ 若 Cr2O3(s)、Fe2O3(s) 及 Al2O3(s) 的莫耳生成熱依序為 X、Y 及 Z (kJ),且 n > m > 0,則下列何者正確?
(A) X > Y > Z
(B) Z > Y > X
(C) Z > X > Y
(D) Y > X > Z
(A) X > Y > Z
(B) Z > Y > X
(C) Z > X > Y
(D) Y > X > Z
參考答案
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