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Electrochemistry PPT Chemistry Class 12

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FAQs on Electrochemistry PPT Chemistry Class 12

1. What is electrochemistry?
Ans. Electrochemistry is the branch of chemistry that deals with the study of the relationship between electricity and chemical reactions. It involves the conversion of chemical energy into electrical energy and vice versa.
2. How does electrochemistry work?
Ans. Electrochemistry works by utilizing redox reactions, which involve the transfer of electrons between chemical species. These reactions occur at the interface between an electronic conductor (electrode) and an ionic conductor (electrolyte), leading to the flow of electric current.
3. What are some practical applications of electrochemistry?
Ans. Electrochemistry has a wide range of practical applications. Some examples include: - Batteries and fuel cells: Electrochemical cells that convert chemical energy into electrical energy. - Electroplating: The process of depositing a metal layer onto a surface using an electric current. - Corrosion prevention: Electrochemical techniques used to protect metals from corrosion. - Sensors and biosensors: Electrochemical devices used for detecting and measuring various substances, including glucose levels in blood. - Water electrolysis: The process of splitting water into hydrogen and oxygen using an electric current, commonly used for hydrogen production.
4. What is an electrolyte in electrochemistry?
Ans. An electrolyte in electrochemistry is a substance that conducts electricity when dissolved or molten. It consists of ions that are capable of moving freely within the solution or across the electrode-electrolyte interface, facilitating the flow of electric current.
5. What is the significance of electrode potential in electrochemistry?
Ans. Electrode potential, also known as redox potential, is a measure of the tendency of an electrode to gain or lose electrons during a redox reaction. It provides valuable information about the thermodynamics and kinetics of electrochemical processes. By comparing the electrode potentials of different species, it is possible to predict the direction and feasibility of redox reactions.
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