Substances of colloidal dimensions are slightly more effective in
modifying vapor pressure than are materials that form true solutions.

Question

Quizplus · Accepted Answer

Colloidal particles are larger than those in true solutions and do not affect the vapor pressure as significantly as the smaller particles in true solutions do. True solutions, with their smaller particles, more effectively modify vapor pressure due to the greater surface area in contact with the solvent, leading to a more pronounced lowering of vapor pressure according to Raoult's law.

Substances of Colloidal Dimensions Are Slightly More Effective in