Daniell electrochemical cell

Daniell electrochemical cell

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Caption: Daniell Cell. This is an electrochemical cell invented by John Daniell in 1836. It consists of a copper cathode (often a copper pot) filled with copper sulphate solution. Inside this sits an unglazed earthenware pot containing a zinc anode and zinc sulphate solution. The zinc is oxidised at the anode, the copper reduced at the cathode, with the overall equation Cu2+ + Zn => Cu + Zn2+, generating an open circuit voltage of 1.1018 Volts.

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Keywords: 1830s, 1836, 19th century, anode, battery, cathode, cell, chemical, chemistry, classic, copper, current, daniell, earthenware, electric, electricity, electrochemical, electrochemistry, electrode, experiment, flask, flow, historical, history, john daniell, oxidation, physical, physics, pot, potential difference, reduction, school science, science education, volt, voltage, zinc

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