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