• 2021-04-14
    已知 CuCl2(s) + Cu(s) = 2CuCl(s) ΔrHmϴ = 170 kJ·mol-1;Cu(s) + Cl2(g) = CuCl2(s) ΔrHmϴ = -206 kJ·mol-1,则 CuCl(s) 的ΔfHmϴ (kJ·mol-1) 为
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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

    • 2

      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

    • 4

      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