已知：\(m{①C_{6}H_{12}O_{6}(s)=2C_{2}H_{5}OH(l)+2CO_{2}(g)}\) \(m{ΔH_{1}}\) \(m{②6CO_{2}(g)+6H_{2}O(g)=C_{6}H_{12}O_{6}(s)+6O_{2}(g)}\) \(m{ΔH_{2}}\) \(m{③2H_{2}O(g)=2H_{2}(g)+O_{2}(g)}\) \(m{ΔH_{3}}\) \(m{④2CO_{2}(g)+6H_{2}(g)=C_{2}H_{5}OH(l)+3H_{2}O(g)}\) \(m{ΔH_{4}}\) 下列有关说法正确的是\(m{(}\)\(m{)}\) --优优班--学霸训练营

已知：\(\rm{①C_{6}H_{12}O_{6}(s)=2C_{2}H_{5}OH(l)+2CO_{2}(g)}\) \(\rm{ΔH_{1}}\)

\(\rm{②6CO_{2}(g)+6H_{2}O(g)=C_{6}H_{12}O_{6}(s)+6O_{2}(g)}\) \(\rm{ΔH_{2}}\)

\(\rm{③2H_{2}O(g)=2H_{2}(g)+O_{2}(g)}\) \(\rm{ΔH_{3}}\)

\(\rm{④2CO_{2}(g)+6H_{2}(g)=C_{2}H_{5}OH(l)+3H_{2}O(g)}\) \(\rm{ΔH_{4}}\)

下列有关说法正确的是\(\rm{(}\) \(\rm{)}\)

A．\(\rm{H_{2}}\)的燃烧热为\(\rm{ΔH_{3}/2}\)

B．反应\(\rm{①}\)使用催化剂，\(\rm{ΔH_{1}}\)将减小

C．标准状况下，反应\(\rm{②}\)生成\(\rm{1.12 L O_{2}}\)，转移的电子数为\(\rm{0.1×6.02×10^{23}}\)

D．\(\rm{2ΔH_{4}=ΔH_{1}+ΔH_{2}-6ΔH_{3}}\)

【考点】反应热和焓变,用盖斯定律及有关计算

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难度：易