Question

HELPPPPP!?!?!?!?!

Answer 1

A nonvolatile solute dissolved in a solvent lowers the vapor pressure, raises the boiling point, and lowers the freezing point.

The vapor pressure is lowered because the solute particles attract the solvent particles, making it more difficult for the solvent particles to escape from the liquid state. Also, the solute particles occupy some of the surface area and physically hinder the escape of some solvent particles.

The boiling point is raised because the solution must be heated to a higher than normal temperature for the solvent particles to overcome the attractions to the solute particles.

The freezing point is lowered because the solute particles lower the vapor pressure of the liquid. As the temperature is decreased below the normal freezing point, the vapor pressure of the pure frozen solvent decreases faster than the solution containing the solute. At some point below the normal freezing point, the vapor pressurs of the frozen solvent and the solution become equal again.

Answer 2

thanks

Answer 3

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