Electrochemistry mein Nernst equation, electrolysis aur conductance aate hain — numerical-heavy scoring chapter. Yahan aapko is chapter ke sabse important formulas aur quick revision points free milte hain — NCERT/CBSE syllabus ke hisaab se, boards aur JEE/NEET dono ke liye.
Important Formulas & Concepts — Electrochemistry
- E°cell = E°cathode − E°anode
- Nernst: E = E° − (0.059/n)·logQ (25°C)
- ΔG° = −nFE°
- Faraday 1st law: m = ZIt; 1 F = 96500 C
- Molar conductivity: Λm = κ × 1000/M
- Kohlrausch: Λ°m = ν₊λ°₊ + ν₋λ°₋
- Weak electrolyte: α = Λm/Λ°m
- ΔG° = −2.303RT·logK = −nFE°
Quick Revision Points
- SHE ka potential zero (reference)
- Zyada E° = better oxidising agent (reduction hoga)
- Electrochemical series se reaction spontaneity predict karo
- Dilution par κ ghatta hai, Λm badhta hai
- Dry cell, lead storage battery, fuel cell — differences rato
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FAQ
Nernst equation kab lagti hai?
Non-standard concentrations par — PDF mein Q likhne ke solved examples hain.
Electrolysis products kaise predict karu?
Preferential discharge ka chart PDF mein hai — molten vs aqueous cases alag hain.
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