Daniell Cell (Zinc-Copper Galvanic Cell)

Zn + Cu2+ → Zn2+ + Cu

Ikhtisar

The Daniell cell consists of a zinc anode in ZnSO₄ solution and a copper cathode in CuSO₄ solution, connected by a salt bridge. Zinc is oxidized (E° = -0.76 V) and copper ions are reduced (E° = +0.34 V), giving a cell potential of 1.10 V. Invented by John Frederic Daniell in 1836, it was the first reliable source of electricity.

Peserta

Peran Zat Koefisien Keadaan
Reaktan Zinc Zn 1 (s)
Produk Copper Cu 1 (s)

Contoh Sehari-hari

The Daniell cell powered early telegraph networks across America and Europe, enabling rapid long-distance communication.

Pentingnya dalam Industri

While superseded by modern batteries, the Daniell cell remains the textbook example for teaching electrochemistry and electrode potentials.

Sifat

Jenis
Electrochemical
Dapat Dibalik
Ya
Energi
Eksoterm
ΔH
-210,0 kJ/mol

Reaksi Terkait

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Frequently Asked Questions

What is the equation for Daniell Cell (Zinc-Copper Galvanic Cell)?
The balanced equation is: Zn + Cu²⁺ → Zn²⁺ + Cu.
What type of reaction is Daniell Cell (Zinc-Copper Galvanic Cell)?
Daniell Cell (Zinc-Copper Galvanic Cell) is a electrochemical reaction. It is reversible under certain conditions.
Is Daniell Cell (Zinc-Copper Galvanic Cell) exothermic or endothermic?
Daniell Cell (Zinc-Copper Galvanic Cell) is exothermic (releases energy). The enthalpy change (ΔH) is -210.0 kJ/mol.