已知：\(m{①H_{2}O(g)=H_{2}O(l)}\)　\(m{ΔH_{1}=-Q_{1}kJ/mol}\)， \(m{②C_{2}H_{5}OH(g)=C_{2}H_{5}OH(l)}\)　\(m{ΔH_{2}=-Q_{2}kJ/mol}\)， \(m{③C_{2}H_{5}OH(g)+3O_{2}(g)=2CO_{2}(g)+3H_{2}O(g)}\)\(m{ΔH_{3}=-Q_{3}kJ/mol}\)。则表示酒精燃烧热的热化学方程式是 --优优班--学霸训练营

已知：\(\rm{①H_{2}O(g)=H_{2}O(l)}\)　\(\rm{ΔH_{1}=-Q_{1}kJ/mol}\)，

\(\rm{②C_{2}H_{5}OH(g)=C_{2}H_{5}OH(l)}\)　\(\rm{ΔH_{2}=-Q_{2}kJ/mol}\)，

\(\rm{③C_{2}H_{5}OH(g)+3O_{2}(g)=2CO_{2}(g)+3H_{2}O(g)}\) \(\rm{ΔH_{3}=-Q_{3}kJ/mol}\)。

则表示酒精燃烧热的热化学方程式是

A．\(\rm{C_{2}H_{5}OH(l)+3O_{2}(g)=2CO_{2}(g)+3H_{2}O(l) ΔH=-(Q_{1}-Q_{2}+Q_{3}) kJ/mol}\)

B．\(\rm{C_{2}H_{5}OH(l)+3O_{2}(g)=2CO_{2}(g)+3H_{2}O(l)}\) \(\rm{ΔH=-(3Q_{1}+Q_{3}) kJ/mol}\)

C．\(\rm{C_{2}H_{5}OH(l)+3O_{2}(g)=2CO_{2}(g)+3H_{2}O(l)}\) \(\rm{ΔH=-(3Q_{1}-Q_{2}+Q_{3}) kJ/mol}\)

D．\(\rm{C_{2}H_{5}OH(l)+3O_{2}(g)=2CO_{2}(g)+3H_{2}O(g)}\) \(\rm{ΔH=-(3Q_{1}-Q_{2}+Q_{3}) kJ/mol}\)

【考点】用盖斯定律及有关计算

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难度：易