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The Chemical History of a Candle

Scientific Lectures on the Chemistry and Physics of Flames

Michael Faraday

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Naturwissenschaften, Medizin, Informatik, Technik / Naturwissenschaften allgemein

Beschreibung

The Chemical History of a Candle presents a series of lectures on the chemistry and physics of flames given by Michael Faraday. The lectures described the different zones of combustion in the candle flame and the presence of carbon particles in the luminescent zone. Demonstrations included the production and examination of the properties of hydrogen, oxygen, nitrogen and carbon dioxide gases. An electrolysis cell is demonstrated, first in the electroplating of platinum conductors by dissolved copper, then the production of hydrogen and oxygen gases and their recombination to form water. The properties of water itself are studied, including its expansion while freezing (iron vessels are burst by this expansion), and the relative volume of steam produced when water is vaporized. Techniques for weighing gases on a balance are demonstrated. Atmospheric pressure is described and its effects demonstrated.

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Schlagwörter

Gas properties, Historical science lectures, Science lectures, Scientific demonstrations, Educational chemistry, Atmospheric pressure, Chemical experiments, Michael Faraday lectures, Combustion zones, Candle chemistry