http://www.chem.purdue.edu/gchelp/liquids/vpress.html Perdue University: presión del vapor Vapor Pressure vapor pressure http://www.chem.purdue.edu/gchelp/liquids/vpress.html http://www.chem.purdue.edu/gchelp/liquids/vpress.html Vapor Pressure Purdue University - Department of Chemistry - Vapor Pressure https://www.chem.purdue.edu/gchelp/liquids/vpress.html http://www.chem.purdue.edu/gchelp/liquids/vpress.html