Respuesta :
The freezing point of a solution will increase and the boiling point it will decreasing with increasing molality of a nonvolatile solute.
Answer should be bold it in.
Answer is C.
Hope it helped you.
-Charlie
Answer should be bold it in.
Answer is C.
Hope it helped you.
-Charlie
Answer: C) decrease, increase, increasing.
Explanation: There is a depression in freezing point when a non volatile solute is added to the solvent and an elevation in boiling point when a non volatile solute is added to a solvent.
Pure water freezes at zero degree C. If a non volatile solute is added to water then solution freezes below zero degree C. On the other hands, if a non volatile solute is added to a solvent then boiling point increases.
The relationship between depression in freezing point and molality is shown by the equation:
[tex]\Delta T_f=-i*m*k_f[/tex]
where, [tex]\Delta T_f[/tex] is depression in freezing point, i is Van't hoff factor, m is molality and kf is the molal freezing point depression constant.
We have almost similar equation for elevation in boiling point.
[tex]\Delta T_b=i*m*k_b[/tex]
[tex]\Delta T_b[/tex] stands for elevation in boiling point and kb stands for molal boiling point constant.