• 2022-06-25
    15K1molH2O(l)蒸发热为43.93kJ·mol-1,则蒸发1molH2O(l)的Qp=kJ·mol-1;ΔrHmӨ=kJ·mol-1;W=kJ·mol-1;ΔU=kJ·mol-1.
  • 43.93;43.93;-2.48;41.45
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    • 0

      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

    • 1

      在373 K和101.3 kPa时,水的汽化热为40.69 kJ·mol-1,则1 mol水气化时QP=________ kJ·mol-1 , ΔrHm = kJ·mol-1 , ΔrSm =_______ J·mol-1·K-1 , ΔrGm =_______ kJ·mol-1。以下哪个选项是正确答案? A: 40.69 kJ·mol-1 , 40.69 kJ·mol-1 , 109.09 J·mol-1·K-1 , 0 B: 37.59 kJ·mol-1 , 40.69 kJ·mol-1 , 109.09 J·mol-1·K-1 , 0 C: 40.69 kJ·mol-1 , 40.69 kJ·mol-1 , 109.09 J·mol-1·K-1 ,40.69 kJ·mol-1 D: 40.69 kJ·mol-1, 40.69 kJ·mol-1, 0, 0

    • 2

      已知在298K时反应2N2(g) + O2(g) = 2N2O(g)的ΔrHmθ为164 kJ·mol–1,则该反应的ΔrUmθ为 A: 166.5 kJ·mol–1 B: 328 kJ·mol–1 C: 146 kJ·mol–1 D: 161.5 kJ·mol–1

    • 3

      298 K时,反应2N2 (g) + O2 (g) = 2N2O (g) 的r UmΘ为166.5 kJ∙mol−1,则该反应的r HmΘ为( ) A: 82 kJ∙mol−1 B: 146 kJ∙mol−1 C: 164 kJ∙mol−1 D: 328 kJ∙mol−1

    • 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