已知:C(s)+O2(g)====CO2(g) ΔH=-393.5 kJ·mol-1, CO(g)+1/2O2(g) ====CO2(g) ΔH=-283 kJ·mol-1,则C(s)与O2的反应热为( ) A.ΔH=-676.5 kJ·mol-1 B.ΔH=+676.5 kJ·mol-1 C.ΔH=-110.5 kJ·mol-1 D.ΔH=+110.5 kJ·mol-1 查看更多

 

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已知:C(s)+O2(g)====CO2(g) ΔH=-393.5 kJ·mol-1; CO(g)+1/2O2(g) ====CO2(g)

ΔH=-283 kJ·mol-1;则C(s)与O2(g)反应生成1 mol CO(g)的反应热为(   )

A.ΔH=-676.5 kJ·mol-1                                  B.ΔH=+676.5 kJ·mol-1

C.ΔH=-110.5 kJ·mol-1                                  D.ΔH=+110.5 kJ·mol-1

 

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已知:C(s)+O2(g)====CO2(g) ΔH=-393.5 kJ·mol-1; CO(g)+1/2O2(g) ====CO2(g)

ΔH=-283 kJ·mol-1;则C(s)与O2(g)反应生成1 mol CO(g)的反应热为(   )

A.ΔH=-676.5 kJ·mol-1                                  B.ΔH=+676.5 kJ·mol-1

C.ΔH=-110.5 kJ·mol-1                                  D.ΔH=+110.5 kJ·mol-1

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已知:C(s)+O2(g)====CO2(g)ΔH=-393.5 kJ·mol-1;CO(g)+1/2O2(g) ====CO2(g)

ΔH=-283 kJ·mol-1;则C(s)与O2(g)反应生成1 mol CO(g)的反应热为(   )

A.ΔH=-676.5 kJ·mol-1                                 B.ΔH=+676.5 kJ·mol-1

C.ΔH=-110.5 kJ·mol-1                                 D.ΔH=+110.5 kJ·mol-1

 

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已知:① C (s) + O2 (g)     CO (g)  △H = – 110.5 kJ · mol – 1

② C (s) + O2 (g)     CO2 (g)   △H = – 393.51 kJ · mol – 1

则反应:C (s) + CO2 (g)     2CO (g) 的△H为(    )

A.– 283.01 kJ · mol – 1           B.+ 172.51 kJ · mol –1

C.+ 283.01 kJ · mol – 1           D.+ 504.00 kJ · mol – 1

 

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已知:C(s)+O2(g)===CO2(g) ΔH=-393.5 kJ·mol-1;CO(g)+1/2O2(g) ===CO2(g) ΔH=-283 kJ·mol-1;则
C(s)与O2(g)反应生成1mol CO(g)的反应热为
[     ]
A.ΔH=-676.5 kJ·mol-1
B.ΔH=+676.5 kJ·mol-1
C.ΔH=-110.5 kJ·mol-1
D.ΔH=+110.5 kJ·mol-1

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