Normal boiling point is defined as the temperature at which the vapor pressure of a liquid is equal to the atmospheric pressure. This thermo-physical property is important to design and calculation unit equipment of chemical engineering such as storage tank, vessel, flash drum, distillation column and so on.
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The normal boiling point of a substance is the temperature at which it boils or vaporizes when the atmospheric pressure is exactly 1 atmosphere (atm) or 101.3 kilopascals (kPa). In other words, it's the temperature at which the vapor pressure of the substance equals the atmospheric pressure, causing it to change from a liquid to a gas. The normal boiling point is a characteristic property of a substance and can be used to identify and compare different compounds.
Here are some examples of substances along with their normal boiling points at standard atmospheric pressure (1 atmosphere or 101.3 kPa):
1. Water (H2O): Normal boiling point is 100 degrees Celsius (212 degrees Fahrenheit). 2. Ethyl Alcohol (Ethanol, C2H5OH): Normal boiling point is approximately 78.37 degrees Celsius (173.07 degrees Fahrenheit). 3. Oxygen (O2): Normal boiling point is -183 degrees Celsius (-297.4 degrees Fahrenheit). 4. Nitrogen (N2): Normal boiling point is -196 degrees Celsius (-321 degrees Fahrenheit). 5. Propane (C3H8): Normal boiling point is approximately -42 degrees Celsius (-44 degrees Fahrenheit).
These examples illustrate how different substances have different normal boiling points due to their unique molecular properties.
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Normal boiling point is defined as the temperature at which the vapor pressure of a liquid is equal to the atmospheric pressure. This thermo-physical property is important to design and calculation unit equipment of chemical engineering such as storage tank, vessel, flash drum, distillation column and so on.
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Here are some examples of substances along with their normal boiling points at standard atmospheric pressure (1 atmosphere or 101.3 kPa):
1. Water (H2O): Normal boiling point is 100 degrees Celsius (212 degrees Fahrenheit).
2. Ethyl Alcohol (Ethanol, C2H5OH): Normal boiling point is approximately 78.37 degrees Celsius (173.07 degrees Fahrenheit).
3. Oxygen (O2): Normal boiling point is -183 degrees Celsius (-297.4 degrees Fahrenheit).
4. Nitrogen (N2): Normal boiling point is -196 degrees Celsius (-321 degrees Fahrenheit).
5. Propane (C3H8): Normal boiling point is approximately -42 degrees Celsius (-44 degrees Fahrenheit).
These examples illustrate how different substances have different normal boiling points due to their unique molecular properties.