Faraday Maimakon Electrolysis – Maimakon Da Biyu (Tambayar & Takaitaccen Maimakon)

Faraday’s Laws of Electrolysis

Amsa da electrolysis na metal sulfate, ya kamata a fahimtar Faraday’s laws of electrolysis.

Idan mai yin electrolyte kamar metal sulfate yana tafuta a jikin ruwa, zai gane aiki a matsayin positive da negative ions. Positive ions (ko metal ions) zai zuwa electrodes da aka sambata a terminali na negative ta battery inda positive ions suna ci electrons daga ita, zama metal atom mai tsarki da aka zaba a electrode.

Negative ions (ko sulphions) zai zuwa electrode da aka sambata a terminali na positive ta battery, inda negative ions suna bayar elektronon da suka fiye da suka zama SO4 radical. Saboda haka SO4 ba zan iya yanayi a matsayin state mai tsarki ba, zai yi amfani a kan electrode na metal positive - zama metallic sulfate wanda zai zauna a jikin ruwa.

Faraday’s laws of electrolysis suna nuna hubungan quantitative (mathematical) wadanda ke bayyana abubuwan da suka bayar a nan.

Faraday’s First Law of Electrolysis

Daga bayanan da aka bayar, ya kamata cewa flow na current a kan external battery circuit ta yi amincewa da adadin electrons da suka ci daga negative electrode ko cathode zuwa positive metallic ion ko cations. Idan cations suna da valency na biyu kamar Cu++ maka har da cation, zai ci biyu electrons daga cathode zuwa cation. Ana sanin cewa har da electron yana da electrical charge negative – 1.602 × 10-19 Coulombs da aka ce – e. Don haka, har da disposition na biyar Cu atom a cathode, zai ci – 2.e charge daga cathode zuwa cation.

A maimaita da t time, zai zama total n number of copper atoms deposited a cathode, saboda haka total charge transferred, zai zama – 2.n.e Coulombs. Mass m of the deposited copper is obviously a function of the number of atoms deposited. Saboda haka, ana iya tabbatar da cewa mass of the deposited copper m ∝ Q quantity of electrical charge passes through the electrolyte.

Faraday’s First Law of Electrolysis ce cewa chemical deposition due to the flow of current through an electrolyte maimakon da quantity of electricity (coulombs) da aka ci daga ita.

i.e. mass of chemical deposition:

Inda Z shi ne constant of proportionality da aka sani a kan electro-chemical equivalent of the substance.

Idan a put Q = 1 coulombs a nan equation, muna samun Z = m wanda yana nufin cewa electrochemical equivalent of any substance shi ne amount of the substance deposited on the passing of 1 coulomb through its solution. This constant of the passing of electrochemical equivalent is generally expressed in terms of milligrams per coulomb or kilogram per coulomb.

Faraday’s Second Law of Electrolysis

Tushen da aka bayar, ya kamata cewa mass of the chemical, deposited due to electrolysis proportional to the quantity of electricity that passes through the electrolyte. Mass of the chemical, deposited due to electrolysis bai proportional to the quantity of electricity passes through the electrolyte, amma kuma yana iya canza da abubuwan da suke. Har da substance yana da atomic weight ta. Don haka, har da number of atoms, substances masu yawan daidai zai da yawan daidai.

Koyaya, adadin atoms da suka zama a electrodes bai canza da number of valency. Idan valency yana da yawa, maka har da adadin electricity, adadin atoms da suka zama zai da yawa, amma idan valency yana da yawan daidai, maka har da adadin electricity, adadin atoms da suka zama zai da yawan daidai.

Saboda haka, har da adadin electricity ko charge passes through different electrolytes, mass of deposited chemical maimakon da atomic weight ta da kuma inversely proportional to its valency.

Faraday’s second law of electrolysis ce cewa, idan adadin electricity da ka ci daga several electrolytes, mass of the substances deposited proportional to their respective chemical equivalent or equivalent weight.

Chemical Equivalent or Equivalent Weight

Chemical equivalent or equivalent weight of a substance can be determined by Faraday’s laws of electrolysis, and it is defined as the weight of that subtenancy which will combine with or displace the unit weight of hydrogen.

Chemical equivalent of hydrogen is, thus, unity. Since valency of a substance is equal to the number of hydrogen atoms, which it can replace or with which it can combine, the chemical equivalent of a substance, therefore may be defined as the ratio of its atomic weight to its valency.

Who Invented Faraday’s Laws of Electrolysis?

Faraday’s Laws of Electrolysis were published by Michael Faraday in 1834. Michael Faraday was also responsible

As well as discovering these laws of electrolysis, Michael Faraday is also responsible for popularizing terminologies such as electrodes, ions, anodes, and cathodes.

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