typical heating curve plot from solid to vapor showing horizontal regions during melting and boiling regions

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Quantitative variation of vapor pressure with temperature- Boiling

plot of water vapor pressure vs. temperature
public domain image via Wikipedia Creative Commons

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Water Properties

 

MW

m.p.

b.p.

Water

18

0°C

100°C

Methane

16

-183°C

-161°C

 

plot of comparative boiling points for Group IV-VII hydrogen compounds in Periods 1-4

 

 

 

© R A Paselk

Last modified 4 November 2009