Kohlrausch Law, Conductance, Molar Conductivity, Lead Battery, Fuel Cell , Corrosion

Welcome back to PYQ Chemistry — your FREE, complete Chemistry course for NEET 2026!

In today's lecture we cover the second half of Electrochemistry — one of the most important and scoring chapters in NEET. We go from basic conductance all the way to real-world applications like fuel cells, lead-acid batteries, button cells, and corrosion. Every concept is explained from scratch with diagrams, formulas, and Previous Year Questions solved right in the lecture.

This is a MUST-WATCH lecture if you are targeting NEET 2026!
🔑 ALL KEY FORMULAS — LECTURE 4

⚡ G = 1/R
⚡ κ = G × G* (specific conductivity)
⚡ G* = l/A (cell constant, cm⁻¹)
⚡ Λm = (κ × 1000) / C (molar conductivity)
⚡ Λm = Λ°m − A√C (Debye-Hückel-Onsager)
⚡ Λ°m = ν₊λ°₊ + ν₋λ°₋ (Kohlrausch's Law)
⚡ α = Λm / Λ°m (degree of dissociation)
⚡ Ka = Cα² / (1−α)
⚡ H₂ + ½O₂ → H₂O (Fuel Cell overall)
⚡ Pb + PbO₂ + 2H₂SO₄ ⇌ 2PbSO₄ + 2H₂O (Lead Battery)

📊 ELECTROCHEMISTRY IN NEET — WEIGHTAGE
2 to 3 question very year

📚 COMPLETE ELECTROCHEMISTRY LECTURE SERIES

▶ Lec 1 — Electrochemical Cell, Galvanic Cell, SHE, E°cell
▶ Lec 2 — Nernst Equation, Concentration Cell, ΔG & EMF
▶ Lec 3 — Electrolysis, Faraday's Laws, Preferential Discharge
▶ Lec 4 — Conductivity, Kohlrausch, Fuel Cell, Batteries, Corrosion ← YOU ARE HERE
▶ 🔴 LIVE — Electrochemistry PYQ Marathon @9PM

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Practice Question

https://gemini.google.com/share/6b9e3d97adf7

https://gemini.google.com/share/0a821f78dcbb
https://ncert.nic.in/textbook/pdf/lech102.pdf

https://youtube.com/shorts/1B_dcTXS18c?si=5Y8Jw_pd_uCTc23z
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Видео Kohlrausch Law, Conductance, Molar Conductivity, Lead Battery, Fuel Cell , Corrosion канала PYQ Chemistry