举一反三
- 已知反应B4C(s)()+4O2(g)()=2B2O3(s)()+CO2(g)的ΔrHmΘ=-2859()kJ·mol-1;而且ΔfHmΘ(B2O3)()=()-1273()kJ·mol-1;ΔfHmΘ(CO2)()=()-393()kJ·mol-1。则ΔfHmΘ(B4C)为()。A.()-()2859()kJ·mol()-()1B.()-()1666()kJ·mol()-()1C.()1666()kJ·mol()-()1D.()-()80.0()kJ·mol()-()1
- 已知 DfGmΘ(AgCl)= - 109.8 kJ · mol–1, 则反应 2 AgCl (s) = 2 Ag (s) + Cl2 (g) 的 DrGmΘ 应为 () A: 219.6 kJ·mol-1 B: 109.8 kJ·mol-1 C: –109.8 kJ·mol-1 D: –219.6 kJ·mol-1
- ∆fHmӨ(AgBr, s)= −100.37 kJ·mol−1, 则反应: 2AgBr (s) → 2Ag (s) + Br2(l)的∆rHmӨ为 A: −100.37 kJ·mol−1; B: −200.74 kJ·mol−1; C: 100.37 kJ·mol−1; D: 200.74 kJ·mol−1
- 已 知 C (s) + 1/2O2(g) → CO (g) 的△rHmθ= -110.5 kJ·mol-1,C (s) +O2(g) → CO2 (g) 的△rHmθ= -393.5 kJ·mol-1, 则 CO (g)+ 1/2O2(g) → CO2(g) 的△rHmθ=..........................( )。 A: -283.0 kJ·mol-1; B: 283.0 kJ·mol-1; C: -110.5 kJ·mol-1; D: -504.0 kJ·mol-1。
- △fHmӨ( AgBr, s ) = - 100.37 kJ·mol-1 , 则 反 应:2AgBr (s) → 2Ag (s) + Br2 (l) 的△rHmӨ 为 A: - 100.37 kJ·mol-1 B: - 200.74 kJ·mol-1 C: 100.37 kJ·mol-1 D: 200.74 kJ·mol-1
内容
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△fHmӨ(AgBr, s ) = - 100.37 kJ·mol-1, 则 反 应:2AgBr (s) → 2Ag (s) + Br2(l) 的△rHmӨ为 A: - 100.37 kJ·mol-1 B: - 200.74 kJ·mol-1 C: 100.37 kJ·mol-1 D: 200.74 kJ·mol-1
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△fHmӨ( AgBr, s ) = - 100.37 kJ·mol-1 , 则 反 应:2AgBr (s) → 2Ag (s) + Br2 (l) 的△rHmӨ 为 A: - 100.37 kJ·mol-1 B: - 200.74 kJ·mol-1 C: 100.37 kJ·mol-1 D: 200.74 kJ·mol-1
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已知Δf GmӨ(AgCl)=-109.6 kJ · mol-1 ,则反应:2AgCl (s)=2Ag (s)+Cl2(g)的ΔrGmӨ 为 ( ) A: -219.2 kJ/mol B: -109.6 kJ/mol C: 219.2 kJ/mol D: 109.6 kJ/mol
- 3
已知Zn(s) + 1/2O2(g) = Zn (s), ∆rHmӨ= -348.28 kJ·mol-1Hg(l) + 1/2O2(g) = HgO(s), ∆rHmӨ= -90.83 kJ·mol-1则Zn(s) + HgO(s) = ZnO(s) + Hg(l)的∆rHmӨ是
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已知MnO2 (s) = MnO (s) + 1/2 O2 (g) r HmΘ = 134.8 kJ∙mol−1,MnO2 (s) + Mn (s) = 2MnO (s) r HmΘ = -250.1 kJ∙mol−1,则MnO2的标准摩尔生成热f HmΘ为( ) A: -519.7 kJ∙mol−1 B: 519.7 kJ∙mol−1 C: 317.5 kJ∙mol−1 D: -317.5 kJ∙mol−1