6: Faraday's Laws of Electrolysis, Serial Cells, Electroplating, and Copper Refining — الكيمياء الصف الثاني الثانوي لغات

درس «6: Faraday's Laws of Electrolysis, Serial Cells, Electroplating, and Copper Refining» فى مادة الكيمياء لـالصف الثاني الثانوي لغات من وحدة «Change and Equilibrium of Matter». This lesson details Faraday's First and Second Laws of Electrolysis, culminating in the master quantitative equation m = (I t M) / (z F). It analyzes series-connected electrolytic cells (m₁/E₁ = m₂/E₂) and presents key industrial applications: decorative/protective electroplating (cathode = object, anode = plating metal) and electro-refining of impure copper (purifying blister copper to 99.99% and recovering gold/silver anode slime). هتتعلم فى الدرس ده: Faraday's 1st Law: Mass deposited is directly proportional...

الدرس ده من وحدة «Change and Equilibrium of Matter» فى مادة الكيمياء لـالصف الثاني الثانوي لغات على منصة دروسات.

الدرس متاح بالاشتراك: ترم كامل أو المادة لوحدها.

ملخص الدرس

This lesson details Faraday's First and Second Laws of Electrolysis, culminating in the master quantitative equation m = (I t M) / (z F). It analyzes series-connected electrolytic cells (m₁/E₁ = m₂/E₂) and presents key industrial applications: decorative/protective electroplating (cathode = object, anode = plating metal) and electro-refining of impure copper (purifying blister copper to 99.99% and recovering gold/silver anode slime).

هتتعلم إيه فى الدرس ده

• Faraday's 1st Law: Mass deposited is directly proportional to charge (m ∝ Q = I * t).
• Faraday's 2nd Law: Masses in series are proportional to equivalent masses (m ∝ M/z).
• Unified Faraday equation: m = (I * t * M) / (z * F) with F = 96485 C/mol e⁻.
• In series cells, equal charge passes through all: m₁/E₁ = m₂/E₂ = Q/F.
• Electroplating: Object is cathode, plating metal is anode, electrolyte contains metal ions.
• Copper electro-refining purifies copper to 99.99% and recovers valuable Au/Ag anode slime.