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Ag + + e − → Ag E ∘ = + 0 , 80 V Cu 2 + + 2 e − → Cu E ∘ = + 0 , 34 V Mn 2 + + 2 e − → Mn E ∘ = − 1 , 18 V Pb 2 + + 2 e − → Pb E ∘ = − 0 , 13 V Cl 2 ​ + 2 e − → 2 Cl − E ∘ = + 2 , 71 V Reaksi berikut yang berlangsung spontan adalah...


Reaksi berikut yang berlangsung spontan adalah...

  1. Cu to the power of 2 plus sign and 2 Cl to the power of minus sign yields Cu and Cl subscript 2

  2. Cu to the power of 2 plus sign and 2 Ag yields Cu and 2 Ag to the power of plus sign

  3. Mn and Ag to the power of plus sign yields Mn to the power of 2 plus sign and Ag

  4. Pb and Mn to the power of 2 plus sign yields Pb to the power of 2 plus sign and Mn

  5. Mn to the power of 2 plus sign and 2 Cl to the power of minus sign yields Mn and Cl subscript 2

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N. Puspita

Master Teacher

Jawaban terverifikasi

Jawaban

jawaban yang benar adalah C.

jawaban yang benar adalah C.

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Pembahasan

Pembahasan
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Reaksi yang berlangsung spontan adalah reaksi yang memiliki bernilai positif. Nilai pada pilihan jawaban adalah: A. B. C. D. E. Yang memiliki nilai positif adalah reaksi dengan Jadi, jawaban yang benar adalah C.

Reaksi yang berlangsung spontan adalah reaksi yang memiliki italic E degree subscript italic s italic e italic l end subscript bernilai positif. Nilai italic E degree subscript italic s italic e italic l end subscript pada pilihan jawaban adalah:

A. Cu to the power of 2 plus sign and 2 Cl to the power of minus sign yields Cu and Cl subscript 2


table attributes columnalign right center left columnspacing 0px end attributes row cell italic E degree subscript sel end cell equals cell italic E degree subscript katode minus sign italic E degree subscript anode end cell row blank equals cell left parenthesis 0 comma 34 minus sign 2 comma 71 right parenthesis space V end cell row blank equals cell negative sign 2 comma 37 space V end cell end table


B. Cu to the power of 2 plus sign and 2 Ag yields Cu and 2 Ag to the power of plus sign


table attributes columnalign right center left columnspacing 0px end attributes row cell italic E degree subscript sel end cell equals cell italic E degree subscript katode minus sign italic E degree subscript anode end cell row blank equals cell left parenthesis 0 comma 34 minus sign 0 comma 80 right parenthesis space V end cell row blank equals cell negative sign 0 comma 46 space V end cell end table


C. Mn and Ag to the power of plus sign yields Mn to the power of 2 plus sign and Ag


table attributes columnalign right center left columnspacing 0px end attributes row cell italic E degree subscript sel end cell equals cell italic E degree subscript katode minus sign italic E degree subscript anode end cell row blank equals cell left parenthesis 0 comma 80 minus sign left parenthesis minus sign 1 comma 18 right parenthesis right parenthesis space V end cell row blank equals cell 1 comma 98 space V end cell end table


D. Pb and Mn to the power of 2 plus sign yields Pb to the power of 2 plus sign and Mn


table attributes columnalign right center left columnspacing 0px end attributes row cell italic E degree subscript sel end cell equals cell italic E degree subscript katode minus sign italic E degree subscript anode end cell row blank equals cell left parenthesis left parenthesis minus sign 1 comma 18 right parenthesis minus sign left parenthesis minus sign 0 comma 13 right parenthesis right parenthesis space V end cell row blank equals cell negative sign 1 comma 05 space V end cell end table


E. Mn to the power of 2 plus sign and 2 Cl to the power of minus sign yields Mn and Cl subscript 2


table attributes columnalign right center left columnspacing 0px end attributes row cell italic E degree subscript sel end cell equals cell italic E degree subscript katode minus sign italic E degree subscript anode end cell row blank equals cell left parenthesis left parenthesis minus sign 1 comma 18 right parenthesis minus sign 2 comma 71 right parenthesis space V end cell row blank equals cell negative sign 3 comma 89 space V end cell end table


Yang memiliki nilai italic E degree subscript italic s italic e italic l end subscript positif adalah reaksi Mn and Ag to the power of plus sign yields Mn to the power of 2 plus sign and Ag dengan italic E degree subscript italic s italic e italic l end subscript equals 1 comma 98 space V

Jadi, jawaban yang benar adalah C.

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Konsep Kilat

Pendahuluan Elektrokimia

Sel Volta

Korosi

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