What reduces vapor pressure?

Answer 1

When a solute is added to a solvent, the vapor pressure of the solvent (above the resulting solution) is lower than the vapor pressure above the pure solvent.

if the solution is non volatile like water, you can add something like Table salt (NaCl) or Soap (sodium stearate) as a solute.

if the solution is volatile like xenon, you can add something like krypton as a solute.

regards

Answer 2

Decreasing the temperature, increasing the intermolecular forces, and adding solutes all reduce vapor pressure by making it more difficult for molecules to escape the liquid phase and enter the gas phase.

Answer 3

Lower temperature, higher volume of container

Answer 4

Relatively low temperature

AND restricted evaporation surface.

Answer 5

an ionic compound that dissolves to give off two moles of solute per liter solution

C for Plato Users

Answer 6

salt in water