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    已知:O2(g) = O2+(g)+e- △H1=+1175.7 kJ/mol PtF6(g)+e-=PtF6-(g) △H2=-771.1 kJ/mol O2PtF6(S)=O2+(g)+PtF6-(g) △H3=+482.2 kJ/mol 则反应O2(g)+PtF6(g) = O2+PtF6-(s)的△H= kJ/mol. 【查看更多】

     

    题目列表(包括答案和解析)

    已知：O2(g)= O2+(g)+e－          H1= +1175.7 kJ·mol-1

    PtF6－(g)=PtF6(g)+e－       H2= +771.1 kJ·mol-1

    O2+(g)+PtF6－(g)=O2PtF6(S)  H3= -482.2 kJ·mol-1

    则反应O2(g)+PtF6(g)= O2PtF6 (s)的H是（   ）

    A．77.6 kJ       B．-77.6 kJ·mol-1    C．+77.6kJ·mol-1    D．-886.8kJ·mol-1

     

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    已知：O2(g) = O2+(g)+e－          H1=" +1175.7" kJ·mol-1
    PtF6－(g) =PtF6(g)+e－      H2=" +771.1" kJ·mol-1
    O2+(g)+PtF6－(g) =O2PtF6(S) H3=" -482.2" kJ·mol-1
    则反应O2(g)+PtF6(g) = O2PtF6 (s)的H是

    A．77.6 kJ B．-77.6 kJ·mol-1 C．+77.6kJ·mol-1D．-886.8kJ·mol-1

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    已知：O2(g) = O2+(g)+e－          H1=" +1175.7" kJ·mol-1
    PtF6－(g) =PtF6(g)+e－      H2=" +771.1" kJ·mol-1
    O2+(g)+PtF6－(g) =O2PtF6(S) H3=" -482.2" kJ·mol-1
    则反应O2(g)+PtF6(g) = O2PtF6 (s)的H是（  ）

    A．77.6 kJ B．-77.6 kJ·mol-1 C．+77.6kJ·mol-1D．-886.8kJ·mol-1

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    已知：
    O2(g) = O2+(g)+e－           △H1= +1175.7 kJ/mol
    PtF6－(g) =PtF6(g)+e－       △H2= +771.1 kJ/mol
    O2+(g)+PtF6－(g) =O2PtF6(s)   △H3= -482.2 kJ/mol
    则反应O2(g)+PtF6(g) = O2PtF6(s)的△H是
    [     ]
    A．77.6 kJ       
    B．-77.6 kJ/mol    
    C．+77.6kJ/mol    
    D．-886.8kJ/mol

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    已知：O2(g)＝O2+(g)＋e－　ΔH1＝＋1175.7 kJ·mol－1

    PtF6－(g)＝PtF6(g)＋e－　ΔH2＝＋771.1 kJ·mol－1

    O2+(g)＋PtF6－(g)＝O2PtF6(S)　ΔH3＝－482.2 kJ·mol－1

    则反应O2(g)＋PtF6(g)＝O2PtF6(s)的ΔH是

    [　　]

    A．

    77.6 kJ

    B．

    －77.6 kJ·mol－1

    C．

    ＋77.6 kJ·mol－1

    D．

    －886.8 kJ·mol－1

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