What is the boiling point elevation formula? Chemistry Solutions Colligative Properties 1 Answer Sayani R. Oct 19, 2014 #Delta# #T_b#= #k_b# * m This is the basic formula. #Delta##T_b# stands for the change in boiling point, i.e. , if initially the boiling point was #T_1# and the final boiling point #T_2# ,then #Delta##T_b#= #T_2# - #T_1#. #k_b# is known as the ebullioscopic constant. *m * stands for molality. Answer link Related questions How are colligative properties determined? How do you calculate freezing point depression? How can freezing point depression determine purity? How does the nature of the solute affect boiling point? How do colligative properties affect freezing point? What colligative property causes ice to melt? Why do colligative properties depend on the number of particles? How do ionic solutes affect the boiling point? Why do solutes lower vapor pressure? How does solubility affect boiling point? See all questions in Colligative Properties Impact of this question 4478 views around the world You can reuse this answer Creative Commons License