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Lyn 1: Die '''verdampingswarmte''' is 'n fisiese eienskap van 'n stof. Dit word gedefinieer as die [[warmte]] wat geabsorbeer moet word om 'n hoeveelheid van 'n stof by sy [[kookpunt]] te laat verdamp. Die verdampingswarmte word dikwels uitgedruk as kJ/mol (ander eenhede wat ook gebruik word is kJ/kg en BTU/lb (lg. veral in Amerikaanse tegniese publikasies). [[Verdamping]] is die teenoorgestelde proses as [[kondensasie]] en daar kan ook gepraat word van '''kondensasiewarmte'''. Laasgenoemde se waarde is dan ook dieselfde as eersgenoemde en word gedefinieer as die hoeveelheid warmte wat vrygestel moet word om 'n sekere hoeveelheid van 'n stof te laat kondenseer. [[Water]] se [[soortlike verdampingswarmte]] is ongeveer 2260 kJ/kg of dan 40.8 kJ/mol. Die latente verdampingswarmte van water is hoog: vyf keer die [[soortlike warmtekapasiteit\|energie wat benodig]] word om water vanaf 0 tot 100 grade Celsius te verhit. <!-- The '''heat of vaporization''' is a physical property of substances. It is defined as the [[heat]] required to vaporize one [[Mole (unit)\|mole]] of a substance at its [[boiling point]] under [[Standard conditions for temperature and pressure\|standard pressure]] (101.325 kPa). The heat of vaporization is expressed in kJ/mol. The use of kJ/kg is also possible, but less customary. Other units still in use include [[BTU\|Btu]]/lb. Because [[evaporation\|vaporization]] is the opposite process of [[condensation]], the term '''heat of condensation''' is also used. The latter is defined as the heat released when one mole of the substance condenses at its boiling point under standard pressure. The heat of vaporization of [[water (molecule)\|water]] is about 2260 kJ/kg which is equal to 40.8 kJ/mol. This is quite a lot: it is five times the [[specific heat capacity\|energy needed]] for heating the water from 0 to 100 degrees Celsius. == Heats of vaporization of the [[element]]s ==

Verdampingswarmte: Verskil tussen weergawes