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    16．Zn(s)+1/2O2,H =-348.3 kJ/mol +1/2O2(g) = Ag2O(s),H =-31.0 kJ/mol 则Zn(s)+Ag2O的H等于( ) -379.3 kJ/mol 317.3 kJ/mol 【查看更多】

     

    题目列表(包括答案和解析)

    已知：(1)Zn(s)+O2(g)ZnO(s)；ΔH=-348.3 kJ·mol-1

    (2)2Ag(s)+O2(g)Ag2O(s)；ΔH=-31.0 kJ·mol-1

    则Zn与Ag2O反应生成ZnO和Ag的热化学方程式为

    A.Zn(s)+Ag2O(s)ZnO(s)+2Ag(s)；ΔH=317.3 kJ·mol-1

    B.Zn+Ag2OZnO+2Ag；ΔH=317.3 kJ·mol-1

    C.Zn(s)+Ag2O(s)ZnO(s)+2Ag(s)；ΔH=-317.3 kJ·mol-1

    D.2Zn(s)+2Ag2O(s)2ZnO(s)+4Ag(s)；ΔH=-317.3 kJ

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    已知：(1)Zn(s)+O2(g)ZnO(s)；ΔH=-348.3 kJ·mol-1

    (2)2Ag(s)+O2(g)Ag2O(s)；ΔH=-31.0 kJ·mol-1

    则Zn与Ag2O反应生成ZnO和Ag的热化学方程式为

    A.Zn(s)+Ag2O(s)ZnO(s)+2Ag(s)；ΔH=317.3 kJ·mol-1

    B.Zn+Ag2OZnO+2Ag；ΔH=317.3 kJ·mol-1

    C.Zn(s)+Ag2O(s)ZnO(s)+2Ag(s)；ΔH=-317.3 kJ·mol-1

    D.2Zn(s)+2Ag2O(s)2ZnO(s)+4Ag(s)；ΔH=-317.3 kJ·mol-1

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    已知：(1)Zn(s)＋O2(g)ZnO(s)，ΔH＝－348.3 kJ/mol

    (2)2Ag(s)＋O2(g)Ag2O(s)，ΔH＝－31.0 kJ/mol则Zn与Ag2O反应生成ZnO和Ag的热化学方程式为

    [　　]

    A．

    Zn(s)＋Ag2O(s)ZnO(s)＋2Ag(s)，ΔH＝317.3 kJ/mol

    B．

    Zn＋Ag2OZnO＋2Ag，ΔH＝317.3 kJ/mol

    C．

    Zn(s)＋Ag2O(s)ZnO(s)＋2Ag(s)，ΔH＝－317.3 kJ/mol

    D．

    2Zn(s)＋2Ag2O(s)2ZnO(s)＋4Ag(s)，ΔH＝－317.3 kJ

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    已知：
    (1)Zn(s)＋1/2O2(g)===ZnO(s)　ΔH＝－348.3 kJ/mol
    (2)2Ag(s)＋1/2O2(g)===Ag2O(s)　ΔH＝－31.0 kg/mol
    则Zn与Ag2O 反应生成ZnO和Ag的热化学方程式为
    [     ]

    A．Zn(s)＋Ag2O(s)===ZnO(s)＋2Ag(s) ΔH＝317.3 kJ/mol
    B．Zn＋Ag2O===ZnO＋2Ag　ΔH＝317.3 kJ/mol
    C．Zn(s)＋Ag2O(s)===ZnO(s)＋2Ag(s) ΔH＝－317.3 kJ/mol
    D．2Zn(s)＋2Ag2O(s)===2ZnO(s)＋4Ag(s) ΔH＝－317.3 kJ/mol

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    已知：(1)Zn(s)＋O2(g)ZnO(s)；ΔH＝－348.3 kJ/mol

    (2)2Ag(s)＋O2(g)Ag2O(s)；ΔH＝－31.0 kJ/mol

    则Zn与Ag2O反应生成ZnO和Ag的热化学方程式为

    [　　]

    A．

    Zn(s)＋Ag2O(s)ZnO(s)＋2Ag(s)；ΔH＝＋317.3 kJ/mol

    B．

    Zn＋Ag2OZnO＋2Ag；ΔH＝＋317.3 kJ/mol

    C．

    Zn(s)＋Ag2O(s)ZnO(s)＋2Ag(s)；ΔH＝－317.3 kJ/mol

    D．

    2Zn(s)＋2Ag2O(s)2ZnO(s)＋4Ag(s)；ΔH＝－317.3 kJ/mol

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