Question

Define "Voltaic cell".​

Answer 1

Answer:

The voltaic cell is an electrochemical cell that uses a chemical reaction to produce a electrical energy.

Answer 2

Answer:

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★Voltaic cell (or galvanic) is An electrochemical cell that converts the chemical energy of spontaneous redox reactions into electrical energy is known as a galvanic cell or a voltaic cell.

★Principle of Galvanic (Voltaic) Cell

• Electric work done by a galvanic cell is mainly due to the Gibbs energy of spontaneous redox reaction in the voltaic cell. It generally consists of two half cells and a salt bridge. Each half cell further consists of a metallic electrode dipped into an electrolyte. These two half-cells are connected to a voltmeter and a switch externally with the help of metallic wires. In some cases, when both the electrodes are dipped in the same electrolyte, a salt bridge is not required.

★Parts of Galvanic Cell

• Anode – Oxidation occurs at this electrode.
• Cathode – Reduction occurs at this electrode.
• Salt bridge – Contains electrolytes which are required to complete the circuit in a galvanic cell.
• Half-cells – reduction and oxidation reactions are separated into compartments.
• External circuit – Conducts the flow of electrons between electrodes
• Load – A part of the circuit utilizes the electron to flow to perform its function

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