IMAT 2017 Q49 [Solutions]

The solubility of potassium nitrate in water increases with temperature.

A saturated solution of potassium nitrate at 80 °C is cooled to 25 °C in a closed container.

Which of the following statements is/are correct?

  1. The mass of undissolved potassium nitrate will increase.
  2. The concentration of the potassium nitrate solution remains the same.
  3. The total mass of solvent present remains the same.

A. 2 and 3 only
B. 1 and 3 only
C. 1 only
D. 2 only
E. 1, 2 and 3