All liquids have a tendency to evaporate. This process takes place at the surface of the liquid. Whenever the kinetic energy of the molecules overcomes the intermolecular force of the attraction in the liquid state then these molecules in the surface are going to escape into space above surface. The process is called evaporation. The pressure exerted by vapours in the surface of a liquid when equilibrium is established between these two phases is called Vapour Pressure. The vapour pressure of the liquid depends on the nature of the liquid and its temperature. If the intermolecular forces of attraction increase, the vapour pressure decreases and with the rise of temperature, the vapour pressure of liquid increases.
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We recommend you to take a look at next file.
It is a very useful tool because it's a data base with all the constants A, B and C to make an automatic calculation of the vapour pressure of more than 700 different species!
It includes the most common compounds from water and toluene to butyl-tetradecyl-sulfide and decahydronaphthalene (seriously, you can find such weird compounds in here)
It is a very useful tool because it's a data base with all the constants A, B and C to make an automatic calculation of the vapour pressure of more than 700 different species!
It includes the most common compounds from water and toluene to butyl-tetradecyl-sulfide and decahydronaphthalene (seriously, you can find such weird compounds in here)
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propiedades_antoine.xls |
Reference:
POLING, BRUCE; PRAUSNITZ, JOHN & O'CONNELL, JOHN. "The Properties of Gases and Liquids". 5th edition. McGraw Hill. New York. 2001
POLING, BRUCE; PRAUSNITZ, JOHN & O'CONNELL, JOHN. "The Properties of Gases and Liquids". 5th edition. McGraw Hill. New York. 2001
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