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Diketahui harga potensial reduksi dari : 2 H + + 2 e − → H 2 ​ E o = 0 volt Al 3 + + 3 e − → Al E o = − 1 , 66 volt Zn 2 + + 2 e − → Zn E o = − 0 , 76 volt Mg 2 + + 2 e − → Mg E o = − 2 , 37 volt Cu 2 + + 2 e − → Cu E o = + 0 , 34 volt Notasi sel yang berlangsung spontan adaiah ....

Diketahui harga potensial reduksi dari :

 

Notasi sel yang berlangsung spontan adaiah ....

  1. Cu forward slash Cu to the power of 2 plus sign forward slash forward slash H to the power of plus sign forward slash H subscript 2 

  2. Mg forward slash Mg to the power of 2 plus sign forward slash forward slash Cu to the power of 2 plus sign forward slash Cu 

  3. Ag forward slash Ag to the power of plus sign forward slash forward slash Al to the power of 3 plus sign forward slash Al  

  4. H subscript 2 forward slash 2 H to the power of plus sign forward slash forward slash Al to the power of 3 plus sign forward slash Al 

  5. Zn forward slash Zn to the power of 2 plus sign forward slash forward slash Mg to the power of 2 plus sign forward slash Mg 

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S. Lubis

Master Teacher

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, maka reaksi berlangsung spontan. Maka, jawaban yang sesuai adalah B

E to the power of 0 sel greater than 0 , maka reaksi berlangsung spontan.

E to the power of 0 sel equals E to the power of 0 red minus sign E to the power of 0 oks 

table attributes columnalign right center left columnspacing 0px end attributes row cell A right parenthesis space E to the power of 0 sel end cell equals cell E to the power of 0 subscript H to the power of plus sign end subscript minus sign E to the power of 0 subscript Cu end cell row blank equals cell 0 minus sign 0 comma 34 end cell row blank equals cell negative sign 0 comma 34 end cell row cell B right parenthesis space E to the power of 0 sel end cell equals cell E to the power of 0 subscript Cu minus sign E to the power of 0 subscript Mg end cell row blank equals cell 0 comma 34 minus sign left parenthesis minus sign 2 comma 37 right parenthesis end cell row blank equals cell plus 2 comma 71 end cell row cell C right parenthesis space E to the power of 0 sel end cell equals cell E to the power of 0 subscript Al minus sign E to the power of 0 subscript Ag end cell row blank equals cell negative sign 1 comma 66 minus sign left parenthesis 0 comma 79 right parenthesis end cell row blank equals cell negative sign 2 comma 45 end cell row cell D right parenthesis space E to the power of 0 sel end cell equals cell E to the power of 0 subscript Al minus sign E to the power of 0 subscript H end cell row blank equals cell negative sign 1 comma 66 minus sign 0 end cell row blank equals cell negative sign 1 comma 66 end cell row cell E right parenthesis space E to the power of 0 sel end cell equals cell E to the power of 0 subscript Mg minus sign E to the power of 0 subscript Zn end cell row blank equals cell negative sign 2 comma 37 minus sign left parenthesis minus sign 0 comma 76 right parenthesis end cell row blank equals cell negative sign 1 comma 61 end cell end table 

Maka, jawaban yang sesuai adalah B

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