In electrochemical cells, the chemical energy is converted into electrical energy. The cell potential is related to free energy change (ΔG).
Unit ‒ V
Batteries
INTRODUCTION
In electrochemical
cells, the chemical energy is converted into electrical energy. The cell
potential is related to free energy change (ΔG).
ΔG for a reaction is a
measure of the maximum useful work, that can be obtained from a chemical
reaction.
Decrease in free energy
will be converted to electrical energy.
ΔG = ‒nFE (or) ΔG < 0
Decrease in free energy
is indicated by (−)ve sign.
One of the main uses of
the galvanic cells is the generation of portable electrical energy. These cells
are known as batteries.
Applied Chemistry I: UNIT 5: Batteries : Tag: Applied Chemistry : - Batteries: Introduction
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