ఒక ద్రవం యొక్క బాష్పీభవన స్థానం శూన్యంలో తక్కువగాను, అధిక పీడనం ఉన్న ఎత్తైన ప్రదేశాలలో ఎక్కువగాను ఉంటుంది. అనగా ఇది చుట్టూ వున్న వాతావరణ పీడనం మీద ఆధారపడి వుంటుంది.
Theసాధారణ '''normalబాష్పీభవన boilingస్థానాన్ని point'''[[సముద్రమట్టం]] (alsoవద్దనున్న calledవాతావరణం theపీడనం '''atmospheric(పీడనం boiling1) point'''వద్ద or the '''atmosphericవాతావరణ pressureబాష్పీభవన boiling pointస్థానం''')ofఅని a liquid is the special case in which the vapor pressure of the liquid equals the defined atmospheric pressure at sea level, 1కూడా atmosphereఅంటారు.<ref>[http://www.chem.purdue.edu/gchelp/gloss/normalbp.html General Chemistry Glossary] [[Purdue University]] website page</ref><ref>{{cite book|author=Kevin R. Reel, R. M. Fikar, P. E. Dumas, Jay M. Templin, and Patricia Van Arnum|title=AP Chemistry (REA) - The Best Test Prep for the Advanced Placement Exam|edition=9th Edition|publisher=Research & Education Association|year=2006|id=ISBN 0-7386-0221-3}} Section 71, page 224</ref> At that temperature, the vapor pressure of the liquid becomes sufficient to overcome atmospheric pressure and lift the liquid to form bubbles inside the bulk of the liquid. The '''standard boiling point''' is now (as of 1982) defined by [[IUPAC]] as the temperature at which boiling occurs under a pressure of 1 bar.<ref>[http://www.iupac.org/publications/pac/1982/pdf/5406x1239.pdf Notation for States and Processes, Significance of the Word Standard in Chemical Thermodynamics, and Remarks on Commonly Tabulated Forms of Thermodynamic Functions] See page 1274</ref>
The [[heat of vaporization]] is the amount of energy required to convert or vaporize a saturated liquid (i.e., a liquid at its boiling point) into a vapor.
