Delta G = -nFE and Coupled Reactions | JEE 2027 Chemistry (English)
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Delta G = -nFE and Coupled Reactions | JEE 2027 Chemistry (English)
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RankDeterminant
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All lessons of this unit: • JEE 2027 Chemistry | Unit 4 Chemical Therm...
Delta G equals minus nFE explained: how the Gibbs energy of a galvanic cell links to its e.m.f., the maximum electrical work a cell can give, E naught equals 0.059 over n log K at 298 K, and how coupling with ATP hydrolysis or with carbon drives a non-spontaneous reaction. Two solved JEE-style problems: the Daniell cell and reducing zinc oxide with carbon, with the n, units and sign traps.
Chapters
0:00 Introduction
0:35 Galvanic cell: Gibbs energy and e.m.f.
2:23 Standard e.m.f. and the equilibrium constant
3:40 Coupled reactions: the total delta G decides
4:59 Example 1: delta G naught of the Daniell cell, E = 1.10 V
6:32 Example 2: can carbon reduce ZnO at 1000 K?
8:05 Quick revision: -nFE, 0.059/n log K and coupling
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Chemistry · Unit 4 · Chemical Thermodynamics · Chapter 6 · Gibbs Energy and Equilibrium
#GibbsEnergyAndEMF #JEEChemistry #JEE2027
Narrated with a computer voice.