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2025-09-13
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2025-09-13
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DEVELOPMENT OF GRAPHICAL-LEARNING SHEETS ON Electrochemistry
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2025-09-13
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2025
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This paper aims to explore fundamental electrochemical systems with a focus on galvanic and electrolytic cells, providing both theoretical understanding and practical insights into their mechanisms. The study begins with the Daniell cell (Zn | Zn²⁺ || Cu²⁺ | Cu), which serves as a classical model for spontaneous redox reactions(1-3). The methodology includes analyzing electron flow in the external circuit, identifying the anode and cathode processes, and measuring the potential difference generated under standard conditions. In addition, electrolysis of sodium chloride (NaCl) solution is investigated to illustrate the non-spontaneous conversion of electrical energy into chemical change, highlighting the production of chlorine at the anode and hydrogen at the cathode(4-6). The research also extends to the hydrogen fuel cell, where a schematic diagram and operational principle are examined to demonstrate its role as a sustainable energy conversion device. Results confirm that generating electrical energy, while in electrolysis, external energy input is required to drive ion migration and gas evolution. The hydrogen fuel cell is shown to provide clean energy with water as the only byproduct. In conclusion, these electrochemical systems collectively illustrate key principles of redox chemistry and their applications in energy storage and conversion(7-9).
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https://osf.io/7g6bh
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2025-09-13
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Title
DEVELOPMENT OF GRAPHICAL-LEARNING SHEETS ON Electrochemistry
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https://osf.io/8w4p9
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Rahman
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https://osf.io
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OSF
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CC-By Attribution 4.0 International
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https://osf.io
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OSF
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https://ror.org/05d5mza29
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Center for Open Science
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https://osf.io/8w4p9
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Rahman