AP EAMCET202119 Aug 2021Morning ShiftChemistrySolutionsActual
The molal elevation constant is the ratio of Elevation in boiling point to
Options
- AMolarity
- BMolality
- CMole fraction of solute
- DMole fraction of solvent
Correct answer
B. Molality
Step-by-step solution
The elevation in its boiling point is directly proportional to the molality of the solution When a non-volatile solute is added to a volatile solvent. ∆ T b = T b   ' - T b ∆ T b     α     molality ∆ T b   = i × K b × molality K b = Molal elevation constant So, molality = ∆ T b K b Hence, the molal elevation constant is the ratio of Elevation in boiling point to molality.