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Pertanyaan

Beberapa data harga potensial reduksi standar (E to the power of o) berikut :

Ag to the power of plus space end exponent open parentheses aq close parentheses space plus space e yields space Ag space open parentheses s close parentheses space space space space space space space space space space space space space space space space space space E degree equals space plus space 0 comma 8 space V  Pb to the power of 2 plus sign space open parentheses aq close parentheses space plus space 2 e space yields Pb space open parentheses s close parentheses space space space space space space space space space space space space space space space E degree equals space minus sign 0 comma 14 space V  Ni to the power of 2 plus sign space open parentheses aq close parentheses space plus space 2 e space rightwards arrow space Ni space open parentheses s close parentheses space space space space space space space space space space space space space space space space E degree equals space minus sign 0 comma 25 space V  Fe to the power of 2 plus sign space open parentheses aq close parentheses space plus space 2 e space yields Fe space open parentheses s close parentheses space space space space space space space space space space space space space space space E degree equals space minus sign 0 comma 44 space V

Reaksi yang dapat berlangsung spontan adalah ....

  1. Ag forward slash Ag to the power of plus sign forward slash forward slash Fe to the power of 2 plus sign forward slash Fe

  2. Ni forward slash Ni to the power of 2 plus sign forward slash forward slash Fe to the power of 2 plus sign forward slash Fe

  3. Ag forward slash Ag to the power of plus sign forward slash forward slash Pb to the power of 2 plus sign forward slash Pb

  4. Ag forward slash Ag to the power of plus sign forward slash forward slash Ni to the power of 2 plus sign forward slash Ni

  5. Ni forward slash Ni to the power of 2 plus sign forward slash forward slash Pb to the power of 2 plus sign forward slash Pb

J. Siregar

Master Teacher

Mahasiswa/Alumni Universitas Negeri Medan

Jawaban terverifikasi

Pembahasan

Reaksi yang dapat berlangsung spontan adalah reaksi yang memiliki nilai E°sel positif.

E degree equals space E degree R e d u k s i minus space E degree space o k s i d a s i 

Pada notasi sel berlaku : oksidasi || reduksi

  • Ag forward slash Ag to the power of plus sign forward slash forward slash Fe to the power of 2 plus sign forward slash Fe

E to the power of o equals space E to the power of o Fe space minus sign space space E to the power of o Ag space equals space left parenthesis minus sign 0 comma 44 right parenthesis space minus sign space left parenthesis plus 0 comma 80 right parenthesis space equals space plus 1 comma 24 space V

  • Ni forward slash Ni to the power of 2 plus sign forward slash forward slash Fe to the power of 2 plus sign forward slash Fe

E to the power of o equals space E to the power of o Fe space minus sign space E to the power of o Ni space equals space left parenthesis minus sign 0 comma 44 right parenthesis space minus sign space left parenthesis minus sign 0 comma 25 right parenthesis space equals space minus sign 0 comma 19 space V

  • Ag forward slash Ag to the power of plus sign forward slash forward slash Pb to the power of 2 plus sign forward slash Pb

E to the power of o equals space E to the power of o Pb space minus sign space E to the power of o Ag space equals space left parenthesis minus sign 0 comma 14 right parenthesis space minus sign space left parenthesis plus 0 comma 80 right parenthesis space equals minus sign 0 comma 94 space V

  • Ag forward slash Ag to the power of plus sign forward slash forward slash Ni to the power of 2 plus sign forward slash Ni

E to the power of o equals space E to the power of o Ni space minus sign space space E to the power of o Ag space equals space left parenthesis minus sign 0 comma 25 right parenthesis space minus sign space left parenthesis plus 0 comma 80 right parenthesis space equals space minus sign 1 comma 05 space V

  • Ni forward slash Ni to the power of 2 plus sign forward slash forward slash Pb to the power of 2 plus sign forward slash Pb

E to the power of o equals space E to the power of o Pb space minus sign space space E to the power of o Ni space equals space left parenthesis minus sign 0 comma 14 right parenthesis space minus sign space left parenthesis minus sign 0 comma 25 right parenthesis space equals space plus 0 comma 11 space V

Maka, reaksi yang berlangsung spontan adalah Ni | Ni2|| Pb2+ | Pb

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Pertanyaan serupa

Diketahui data potensial reduksi berikut.    Reaksi yang dapat berlangsung adalah ....

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