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Questions and Answers
What distinguishes an electrochemical reaction from a conventional chemical reaction?
What distinguishes an electrochemical reaction from a conventional chemical reaction?
- Electrons are transferred directly between atoms, ions, or molecules.
- Electrons move via an electronically-conducting circuit. (correct)
- The involvement of an ionically conducting electrolyte.
- The presence of an external electrical circuit.
Which scientist is known as the 'Father of Magnetism'?
Which scientist is known as the 'Father of Magnetism'?
- Alessandro Volta
- Michael Faraday
- Hans Christian Oersted
- William Gilbert (correct)
In which century did the understanding of electrical matters begin?
In which century did the understanding of electrical matters begin?
- 15th century
- 17th century
- 14th century
- 16th century (correct)
What type of conducting phase do electrons typically move via in electrochemical reactions?
What type of conducting phase do electrons typically move via in electrochemical reactions?
When is a chemical reaction called an electrochemical reaction?
When is a chemical reaction called an electrochemical reaction?
इस सूत्र को इलेक्ट्रोकैमिकल प्रतिक्रिया से एक पारंपरिक रासायनिक प्रतिक्रिया से क्या अंतर कहा जाता है?
इस सूत्र को इलेक्ट्रोकैमिकल प्रतिक्रिया से एक पारंपरिक रासायनिक प्रतिक्रिया से क्या अंतर कहा जाता है?
16वीं से 18वीं सदी में विद्युतीय मामलों की समझ कब शुरू हुई थी?
16वीं से 18वीं सदी में विद्युतीय मामलों की समझ कब शुरू हुई थी?
किसने 'मैग्नेटिज्म के पिता' के रूप में जाना जाता है?
किसने 'मैग्नेटिज्म के पिता' के रूप में जाना जाता है?
1663 में, किसने पहला इलेक्ट्रिक जनरेटर बनाया?
1663 में, किसने पहला इलेक्ट्रिक जनरेटर बनाया?
'मैग्नेटिज्म के पिता' के रूप में कौन प्रसिद्ध है?
'मैग्नेटिज्म के पिता' के रूप में कौन प्रसिद्ध है?
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Study Notes
Electrochemistry
- Branch of physical chemistry that deals with the relationship between electrical potential difference and identifiable chemical change
- Involves reactions where electrons move via an electronically-conducting phase, typically an external electrical circuit
Electrochemical Reactions
- Driven by an electrical potential difference, as in electrolysis
- Result from a chemical reaction, as in an electric battery or fuel cell
- Electrons are not transferred directly between atoms, ions, or molecules, but via an electronically-conducting circuit
Key Reaction Components
- Electrodes: separated by an ionically conducting and electronically insulating electrolyte (or ionic species in a solution)
- Electronically-conducting phase: allows electrons to move between electrodes
- Ionically conducting and electronically insulating electrolyte: separates electrodes and enables ionic conduction
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