\(m{N_{2}H_{4}}\)是一种高效清洁的火箭燃料，\(m{0.25molN_{2}H_{4}(g)}\)完全燃烧生成氮气和气态水时，放出\(m{133.5kJ}\)热量\(m{.}\)则下列热化学方程式中正确的是\(m{(}\)　　\(m{)}\) --优优班--学霸训练营

\(\rm{N_{2}H_{4}}\)是一种高效清洁的火箭燃料，\(\rm{0.25molN_{2}H_{4}(g)}\)完全燃烧生成氮气和气态水时，放出\(\rm{133.5kJ}\)热量\(\rm{.}\)则下列热化学方程式中正确的是\(\rm{(}\)　　\(\rm{)}\)

A．\(\rm{N_{2}H_{4}(g)+O_{2}(g)═N_{2}(g)+2H_{2}O(g)\triangle H=+267}\) \(\rm{kJ⋅mol^{-1}}\)

B．\(\rm{N_{2}H_{4}(g)+O_{2}(g)═N_{2}(g)+2H_{2}O(g)\triangle H=-534}\) \(\rm{kJ⋅mol^{-1}}\)

C．\(\rm{N_{2}H_{4}(g)+O_{2}(g)═N_{2}(g)+2H_{2}O(g)\triangle H=+534}\) \(\rm{kJ⋅mol^{-1}}\)

D．\(\rm{N_{2}H_{4}(g)+O_{2}(g)═N_{2}(g)+2H_{2}O(l)\triangle H=-133.5}\) \(\rm{kJ⋅mol^{-1}}\)

【考点】反应热和焓变

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难度：中等