Pertanyaan

Diketahui potensial reduksi standar sebagai berikut: Fe 2 + / Fe E ∘ = ‐0 , 41 V Zn 2 + / Zn E ∘ = ‐0 , 76 V Cu 2 + / Cu E ∘ = + 0 , 34 V Ag + / Ag E ∘ = + 0 , 80 V Reaksi yang tidak dapat berlangsung spontan adalah ....

Diketahui potensial reduksi standar sebagai berikut:

Reaksi yang tidak dapat berlangsung spontan adalah ....

  1. begin mathsize 14px style Fe divided by Fe to the power of 2 plus end exponent ⫽ Zn to the power of 2 plus end exponent divided by Zn end style

  2. begin mathsize 14px style Zn divided by Zn to the power of 2 plus end exponent ⫽ Cu to the power of 2 plus end exponent divided by Cu end style

  3. begin mathsize 14px style Fe divided by Fe to the power of 2 plus end exponent ⫽ Cu to the power of 2 plus end exponent divided by Cu end style

  4. begin mathsize 14px style Cu divided by Cu to the power of 2 plus end exponent ⫽ Ag to the power of plus divided by Ag end style

  5. begin mathsize 14px style Fe divided by Fe to the power of 2 plus end exponent ⫽ Ag to the power of plus divided by Ag end style

Belajar bareng Champions

Brain Academy Champions

Hanya di Brain Academy

Habis dalam

02

:

22

:

33

:

04

Klaim

A. Tiara

Master Teacher

Mahasiswa/Alumni Universitas Negeri Semarang

Jawaban terverifikasi

Pembahasan

Reaksi yang dapat berlangsung spontan adalah reaksi yang memiliki nilai E°selpositif. Maka, reaksi yang tidak spontan memiliki E°sel negatif. Pada notasi sel berlaku : oksidasi || reduksi Maka, reaksi yang tidak berlangsung spontan adalahFe| Fe 2 + || Zn 2+ | Zn

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

Maka, reaksi yang tidak spontan memiliki  E°sel negatif.

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

  • begin mathsize 14px style Fe divided by Fe to the power of 2 plus end exponent ⫽ Zn to the power of 2 plus end exponent divided by Zn end style

E to the power of o space equals space E to the power of o Zn space minus sign space E to the power of o Fe space equals left parenthesis minus sign 0 comma 76 right parenthesis space minus sign space left parenthesis minus sign 0 comma 41 right parenthesis space equals minus sign 0 comma 33 space V

  • begin mathsize 14px style Zn divided by Zn to the power of 2 plus end exponent ⫽ Cu to the power of 2 plus end exponent divided by Cu end style

E to the power of o space equals space E to the power of o Cu space minus sign space E to the power of o Zn space equals left parenthesis plus 0 comma 34 right parenthesis space minus sign space left parenthesis minus sign 0 comma 76 right parenthesis space equals plus 1 comma 10 space V

  • begin mathsize 14px style Fe divided by Fe to the power of 2 plus end exponent ⫽ Cu to the power of 2 plus end exponent divided by Cu end style

E to the power of o space equals space E to the power of o Cu space minus sign space E to the power of o Fe space equals left parenthesis plus 0 comma 34 right parenthesis space minus sign space left parenthesis minus sign 0 comma 41 right parenthesis space equals plus 0 comma 75 space V

  • begin mathsize 14px style Cu divided by Cu to the power of 2 plus end exponent ⫽ Ag to the power of plus divided by Ag end style

E to the power of o space equals space E to the power of o Ag space minus sign space E to the power of o Cu space equals left parenthesis plus 0 comma 80 right parenthesis space minus sign space left parenthesis plus 0 comma 34 right parenthesis space equals plus 0 comma 46 space V

  • begin mathsize 14px style Fe divided by Fe to the power of 2 plus end exponent ⫽ Ag to the power of plus divided by Ag end style

E to the power of o space equals space E to the power of o Ag space minus sign space E to the power of o Fe space equals left parenthesis plus 0 comma 80 right parenthesis space minus sign space left parenthesis minus sign 0 comma 41 right parenthesis space equals plus 1 comma 21 space V

Maka, reaksi yang tidak berlangsung spontan adalah  Fe | Fe2|| Zn2+ | Zn

Perdalam pemahamanmu bersama Master Teacher
di sesi Live Teaching, GRATIS!

3

Pertanyaan serupa

Diketahui potensial elektrode standar berikut: Fe 2 + ( a q ) + 2 e − → Fe ( s ) E ∘ = − 0 , 44 V Zn 2 + ( a q ) + 2 e − → Zn ( s ) E ∘ = − 1 , 85 V Ag + ( a q ) + e − → Ag ( s ) E ∘ = + 0 , 80 V...

4

5.0

Jawaban terverifikasi

RUANGGURU HQ

Jl. Dr. Saharjo No.161, Manggarai Selatan, Tebet, Kota Jakarta Selatan, Daerah Khusus Ibukota Jakarta 12860

Coba GRATIS Aplikasi Roboguru

Coba GRATIS Aplikasi Ruangguru

Download di Google PlayDownload di AppstoreDownload di App Gallery

Produk Ruangguru

Hubungi Kami

Ruangguru WhatsApp

+62 815-7441-0000

Email info@ruangguru.com

[email protected]

Contact 02140008000

02140008000

Ikuti Kami

©2024 Ruangguru. All Rights Reserved PT. Ruang Raya Indonesia