Chapter Name : Electrochemistry |
Sub Topic Code : 102_12_03_07_01 |
Topic Name : Batteries |
|
Sub Topic Name : Primary Batteries |
• Primary batteries are electrochemical cells which are non-rechargeable and non-reusable. • The most commonly used primary battery is a dry cell(also called as Leclanche cell). • Mercury cell is another example of primary battery. . .
• Redox reactions • Electrochemical cells
Different cells used in watches, remotes, flash lights.
What are the types of cells used in watches, flash lights?
Key Words | Definitions (pref. in our own words) |
---|---|
Electrochemical or galvanic cell | A device in which chemical energy released during a chemical reaction is converted into electrical energy. |
Primary battery | Cells in which the reaction occurs only once and thus are non-rechargeable, non-reusable. |
Electrodes | Metallic rods dipped in the electrolyte solution. |
Anode | It is a positively charged electrode, where electrons are released or oxidation occurs. |
Cathode | It is a negatively charged electrode, where electrons are accepted or reduction occurs. |
Cell potential | The potential difference between the two electrodes of a galvanic cell. |
Gadgets | How it can be used |
---|---|
Cell used in watch | This is an example of mercury cell. |
Cell used in TV remote | This is an example of dry cell. |
• Used in watch, flash light, torch.
Home.
Examples | Explainations |
---|---|
Home | Cells used in torches, watches are made of electrochemical cells. |
What are primary batteries?
Uses of primary battery.
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