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已知：Fe2O3(s)＋C(s)===CO2(g)＋2Fe(s) ΔH＝+234.14 kJ·mol－1
C(s)＋O2(g)===CO2(g) ΔH＝－393.5 kJ·mol－1
则2Fe(s)＋O2(g)===Fe2O3(s)的ΔH是
A．－824.39 kJ·mol－1 B．+ 627.6 kJ·mol－1
C。－744.7 kJ·mol－1 D．－169.4 kJ·mol－1
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已知：Fe2O3(s)＋C(s)===CO2(g)＋2Fe(s) ΔH＝+234.14 kJ·mol－1
C(s)＋O2(g)===CO2(g) ΔH＝－393.5kJ·mol－1
则2Fe(s)＋O2(g)===Fe2O3(s)的ΔH是
A．－824.39 kJ·mol－1 B．+ 627.6kJ·mol－1
C。－744.7 kJ·mol－1 D．－169.4kJ·mol－1
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已知：Fe2O3(s)＋
C(s) = CO2(g)＋2Fe(s) H =＋234.1 kJ·mol－1
C(s)＋O2(g) = CO2(g) H =－393.5 kJ·mol－1
则2Fe(s)＋O2(g) = Fe2O3(s)的H是 ( )
A．－824.4 kJ·mol－1 B．－627.6 kJ·mol－1
C．－744.7 kJ·mol－1 D．－169.4 kJ·mol
查看习题详情和答案>>
已知：Fe2O3(s)＋C(s)===CO2(g)＋2Fe(s) ΔH＝+234.14 kJ·mol－1
C(s)＋O2(g)===CO2(g) ΔH＝－393.5 kJ·mol－1
则2Fe(s)＋O2(g)===Fe2O3(s)的ΔH是
| A．－824.39 kJ·mol－1 | B．+ 627.6 kJ·mol－1 |
| C．－744.7 kJ·mol－1 | D．－169.4 kJ·mol－1 |
C(s) = 
C(s)＋O2(g) = CO2(g)
H =－393.5 kJ·mol－1