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Questions and Answers
Which branch of chemistry is concerned with the relationship between electrical potential difference and chemical change?
Which branch of chemistry is concerned with the relationship between electrical potential difference and chemical change?
- Organic chemistry
- Inorganic chemistry
- Physical chemistry (correct)
- Analytical chemistry
In an electrochemical reaction, how are electrons transferred between atoms, ions, or molecules?
In an electrochemical reaction, how are electrons transferred between atoms, ions, or molecules?
- Directly
- Via a conducting circuit (correct)
- Through a series of chemical reactions
- By diffusion
What is the role of the electrolyte in an electrochemical reaction?
What is the role of the electrolyte in an electrochemical reaction?
- To facilitate direct transfer of electrons
- To conduct electricity (correct)
- To insulate electrons
- To provide chemical reactants
What is the term for an electrochemical reaction driven by an electrical potential difference?
What is the term for an electrochemical reaction driven by an electrical potential difference?
How does an electric battery or fuel cell produce a potential difference?
How does an electric battery or fuel cell produce a potential difference?
Flashcards
What is physical chemistry?
What is physical chemistry?
Deals with the relationship between electrical potential and chemical reactions.
Electron transfer in electrochemistry
Electron transfer in electrochemistry
Electrons move through a conductive path connecting reactants.
Electrolyte's role
Electrolyte's role
A substance that conducts electricity in electrochemical reactions.
What is electrolysis?
What is electrolysis?
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Batteries and fuel cells
Batteries and fuel cells
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Study Notes
Branch of Chemistry
- Electrochemistry deals with the relationship between electrical potential difference and chemical change.
Electron Transfer in Reactions
- In electrochemical reactions, electrons are transferred through oxidation-reduction (redox) processes where one species loses electrons (oxidation) and another gains them (reduction).
Role of Electrolyte
- The electrolyte, which is usually an ionic substance in a liquid or gel form, conducts electricity by allowing the movement of ions, facilitating the transfer of charge during the reaction.
Electrical Potential Driven Reaction
- An electrochemical reaction driven by an electrical potential difference is termed an electrolysis, where the input of energy causes a chemical change.
Electric Battery and Fuel Cell Function
- Electric batteries and fuel cells produce a potential difference through chemical reactions that release energy, allowing the flow of electrical current as a result of electron movement between the anode and cathode.
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