Friday 1 March 2013

ENGINEERING CHEMISTRY 2 UNIT 1 IMPORTANT QUESTION - ELECTROCHEMISTRY CY2161

ELECTROLYTIC CELL


ELECTROCHEMICAL
CELL
Electrical energy i
s converted into chemical energy
Chemical energy is converted into electrical energy
The anode carries positive charge
The Anode Carries negative charge
The cathode carries negative charge
The cathode carries positive charge
Here the electrons are supplied to the cell from the external battery.i.e., electrons move through cathode and come from anode
But,electrons are drawn from the cell.i.e.,electrons move from cathode to anode.

Amount of the electricity passed during electrolysis is measured by the coulometer
The e.m.f produced in the cell is measured by the potentiometer.
The extent of chemical rection occurring at the electrodes is governed by the Faraday’s Law of Electrolysis.
The E,m.F of the cell depends on the concentration of the electrolytes and the chemical nature of the electrode

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