1. The problem statement, all variables and given/known data Examkrackers Lecture question - MCAT Prep book 116. A student holds a beaker of pure liquid A in one hand and pure liquid B in the other. Liquid A has a higher boiling point than liquid B. When the student pours a small amount of liquid B into liquid A, the temperature of the solution increases. Which of the following statements is true? Tempting answer choices: B. The boiling point of the solutions is higher than either pure liquid A or B. C. The freezing point of the solution is higher than either pure liquid A or B. 2. Relevant equations None were supplied. 3. The attempt at a solution I can argue for either answer B or answer C. C: By mixing the solutions together, any lattice which would form upon freezing must have been disrupted, producing a higher melting point. Is this thinking correct? Why or why not? B: Maybe not because isn't it possible that mixing two solutions would increase the kinetic energy of the particles? If it is possible that kinetic energy is responsible for the increase in temperature, then, B is not necessarily correct. Could that be the case? Why or why not? (The obvious other possibility is that stronger bonds formed releasing energy and increasing the boiling point.) Thanks for your help!