If the boiling points of two solvents X and Y (having same molecular weights) are in the ratio 2:1 and their enthalpy of vaporizations are in the ratio 1:2, then the boiling point elevation constant o

Question

If the boiling points of two solvents X and Y (having same molecular weights) are in the ratio 2:1 and their enthalpy of vaporizations are in the ratio 1:2, then the boiling point elevation constant of X is m times the boiling point elevation constant of Y. The value of m is (nearest integer).

Canvas Classes · Accepted Answer

Strategy:
 The ebullioscopic constant () is given by . Since the molar masses () and  are constants for both solvents, we can relate the ratios of  to the ratios of boiling points () and enthalpies of vaporization ().

Step 1: Express the ratio of  values

Step 2: Substitute the given ratios
- 
-

Step 3: Calculate the value of m

Thus, .

More questions from Solutions