Question

When a non volatile solid is added to pure water it will:

boil above 100oC and freeze above0ᵒC
boil below 100oC and freeze above0ᵒC
boil above 100oC and freeze below 0ᵒC
boil below 100oC and freeze below0ᵒC​

Answer 1

Answer:

(C) boil above 100oC and freeze below 0ᵒC

Explanation:

HAVE A NICE DAY

Answer 2

When a non-volatile solid is added to pure water it will boil above $\[100^\circ C\]$ and freeze below $\[0^\circ C\]$.

Explanation:

• The addition of a non-volatile solute to a pure solvent causes a decrease in the vapour pressure of the solvent as compared to the pure solvent. This is called lowering in vapour pressure.
• Lowering in vapour pressure results in an elevation in boiling point.
• Therefore, when a non-volatile solid is added to pure water, it will boil at a higher temperature than $\[100^\circ C\]$.
• On the other hand, lowering in vapour pressure also results in depression in the freezing point.
• Thus, when a non-volatile solid is added to pure water, it will freeze at a lower temperature than $\[0^\circ C\]$.