\(m{2CO(g)+4H_{2}(g)=2CH_{4}(g)+O_{2}(g) Δ}\)\(m{H}\)\(m{=+71 kJ·mol^{-1} ①}\) \(m{CO(g)+2H_{2}(g)=CH_{3}OH(l) Δ}\)\(m{H}\)\(m{=-90.5 kJ·mol^{-1}②}\)已知甲烷的燃烧热为\(m{890 kJ·mol^{-1}}\)，则甲醇的燃烧热\(m{Δ}\)\(m{H}\)为()--优优班--学霸训练营

\(\rm{2CO(g)+4H_{2}(g)=2CH_{4}(g)+O_{2}(g) Δ}\)\(\rm{H}\)\(\rm{=+71 kJ·mol^{-1} ①}\) \(\rm{CO(g)+2H_{2}(g)=CH_{3}OH(l) Δ}\)\(\rm{H}\)\(\rm{=-90.5 kJ·mol^{-1}②}\)已知甲烷的燃烧热为\(\rm{890 kJ·mol^{-1}}\)，则甲醇的燃烧热\(\rm{Δ}\)\(\rm{H}\)为( )

A．\(\rm{-1 528 kJ·mol^{-1}}\)

B．\(\rm{-764 kJ·mol^{-1}}\)

C．\(\rm{-382 kJ·mol^{-1}}\)

D．无法计算

【考点】燃烧热,用盖斯定律及有关计算

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【解答】请登陆后查看

难度：较难

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