How would the freezing point of seawater compare with that of pure water? a)higher b) lower c) the same d) ten times higher

2 answers:

4 0

The answer would be B) Lower, because pure water freezes at 32 degrees Fahrenheit whereas salt water freezes at 28.4 degrees Fahrenheit. Hopefully this helps!

olga_2 [115]3 years ago

3 0

Answer:

Freezing point of seawater is lower as compared to pure water

Explanation:

Seawater contains salts like $MgCl_{2}$ , NaCl etc.

According to colligative properties of molecules, presence of solute in a pure solvent lowers freezing point of pure solvent obeying the following equation-

$\Delta T_{f}=k_{f}.m$

where $\Delta T_{f}$ is lowering of freezing point, $k_{f}$ if cryogenoscopic constant of solvent and m is molality of solution.

In seawater, water is the solvent and $MgCl_{2}$ , NaCl etc are solutes.

Hece freezing point of seawater is lower than pure water

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