To which of the following variables is change in boiling point directly proportional? molarity of solution molality of solution percent by volume of solution percent (mass/mass) of solution

1. Identify the relevant concept The change in boiling point is directly proportional to the molality of the solution.2. Apply the formula The formula for boiling point elevation is ** **, where is the change in boiling point, is the van't Hoff factor, is the ebullioscopic constant, and is the molality.