As the number of solute particles in a given volume of solution increases,
A)the boiling point will increase and the vapor pressure will increase.
B)the freezing point will decrease and the vapor pressure will decrease.
C)the freezing point will increase and the vapor pressure will increase.
D)the boiling point will decrease and the vapor pressure will decrease.
E)the osmotic pressure will decrease and the lattice energy will increase.

Question

Quizplus · Accepted Answer

When the number of solute particles in a solution increases, it causes the freezing point to decrease and the vapor pressure to decrease due to colligative properties. These changes occur because the presence of solute particles disrupts the formation of a solid phase (lowering the freezing point) and reduces the number of solvent molecules at the surface available to escape into the vapor phase (lowering the vapor pressure).

As the Number of Solute Particles in a Given Volume