25℃时,φθ(Fe3+,Fe2+) = 0.771V,φθ(Sn4+,Sn2+) = 0.150V,反应2Fe3+(a=1)+Sn2+(a=1)==Sn4+(a=1)+2Fe2+ (a=1)的ΔrGmθ为:()
- A、-268.7kJ/mol
- B、-177.8kJ/mol
- C、-119.9kJ/mol
- D、119.9kJ/mol
正确答案:C
答案解析:有
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25℃时,φθ(Fe3+,Fe2+) = 0.771V,φθ(Sn4+,Sn2+) = 0.150V,反应2Fe3+(a=1)+Sn2+(a=1)==Sn4+(a=1)+2Fe2+ (a=1)的ΔrGmθ为:()
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