Boiling Point Elevation

Molality $\mathit{m}=\frac{\mathit{x}}{\mathrm{W}}\times 1000$ .....(i)
Where, Molality $=\mathrm{m}$
Number of mole of solute $=\mathit{x}$
Weight of solvent in grams $=\mathrm{W}$
Moles of solute $=$ mass of solute $∕$ molar mass of solute
From eq. (i), (ii), (iii), we derive that elevation of boiling point is inversely proportional to the molar mass of the solute.