Atmospheric Pressure and Boiling Point
A clear explanation of the basic knowledge necessary to understand distillation, distillation towers, and distillation equipment!
Kansai Chemical conducts plant engineering for processes such as distillation, evaporation, refining, reaction, fermentation, extraction, and solvent recovery. I will explain about "atmospheric pressure and boiling point." Most of the atmosphere consists of air and water, and atmospheric pressure is expressed in hectopascals (hPa). In fact, atmospheric pressure is the sum of air pressure and water vapor pressure. In the state before the water in the pot boils, steam initially rises above the pot, and gradually the amount of water vapor increases. The amount of air just above the pot decreases gradually. When boiling occurs, all the air is gone, and it becomes all water vapor. Assuming the atmospheric pressure on that day was 1,013 hPa, the water vapor pressure just above the pot becomes 1,013 hPa since there is no air left, and it consists solely of water vapor. At that time, the temperature of the pot is 100°C. *For more details, please refer to the PDF document or feel free to contact us.*
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