8. 已知 PbO(s) + CO(g) →Pb(s) + CO2(g), ∆H°= −131.4 kJ; ∆H°f for CO2(g) = −393.5 kJ/mol; ∆H°f for CO(g) = −110.5
kJ/mol。計算氧化鉛(PbO(s))的標準生成焓(standard enthalpy of formation, ∆H°f)。
(A) −151.6 kJ/mol
(B) −283.0 kJ/mol
(C) +283.0 kJ/mol
(D) −372.6 kJ/mol
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統計: A(351), B(33), C(13), D(21), E(0) #880157
統計: A(351), B(33), C(13), D(21), E(0) #880157
詳解 (共 2 筆)
#5384269
生成焓:後-前
-393.5-(-110.5)-x=-131.4
x=-151.6
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