What sort of property is #"boiling point elevation"#?

1 Answer
May 9, 2017

Answer:

#"Boiling point elevation"# is a so-called #"colligative property."#

Explanation:

And by definition the effect depends on the number of particles in solution. We could use #"molarity"#, #mol*L^-1#, to express the number of particles. But because molarity is dependent on temperature (i.e. solution can become LESS dense with increasing temperature), we typically use another concentration term, #"molality"-="moles of solute"/"kilogram of solvent"# to express the number of particles per mass of solvent.

At LOW concentrations, #"molality"# is equivalent to #"molarity"#.