Respuesta :
the answer is the addition to solute decreases the solvent's vapor pressure. a temperature must then be applied to overcome the change
Molality is the ratio of the moles and the mass of the solvent in kg. An increase in molality increases the boiling point as the vapor pressure of the solvent gets decreases.
What is the relation between molality and boiling point?
When the concentration of the solute increases (high molality) then the boiling point also increases as the higher solute concentration does not easily allow the solvent phase to escape, and hence the boiling point increases.
Molality decreases the melting point but the boiling point increases with an increase in the molality as it is directly proportional to the concentration of the solute.
Therefore, an increase in molality increases the boiling point as the vapor pressure of the solvent gets decreases.
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