Does density affect the freezing point of liquids?

Answer 1

I am not an expert (expertise is in pharmacy but I have taught high school chemistry for a couple of years)
but I disagree with cooldude. When I think of density of a solution I think of two solutions for the same
substance where the difference is a difference in concentration. For example a 10% solution of NaCl vs a 20% solution of NaCl. I believe that not only does it take longer for the 20% solution to freeze but it takes the removal of more heat so that the atoms can align and crystalize. Thus the greater amount of ionic solute in the solution lowers the freezing point. Remember how we use
NaCl or CaCl2 to put on roads before heavy snowfall to
make it more difficult for the snow to freeze and thus help to minimize hazardous roadways.

Answer 2

Density
The thicker a liquid is the quicker it freezes. Most people don’t realize this, but in some cases the freezing rate doesn’t depend on the density. Instead, the freezing point does. Also, the density of a liquid depends on the company it is made in because they may have different chemicals in them. Density of a substance is indirectly proportional to the temperature it needs to be frozen. Also, if the substance is denser if it has less mass and it taken up in that space.Generally speaking liquids become less dense when heated. Higher temperature means molecules move faster and further, creating more space (void)
Apart from water, Si (silicon) is an important exception. What both have in common is a solids' structure that has plenty of empty space (they are both only 4-coordinated, diamond-structure like, contrast that with the highest possible coordination [of balls], which is 12), so when the solids melt and order breaks down, some of the empty space can be filled, hence the density of the liquids increases. If ice was always more dense than water, we would have "permafrost" like oceans and maybe life would not have evolved at all.

Answer 3

It depends if you're talking about a pure liquid or a solution. If it's a solution, then yes it will, as the extra density comes from more dissolved solute, and one of the colligative properties of water is that the freezing point is depressed dependent on the molality of the solute (nature of the solute plays a key role).

For pure liquids, there is no direct correlation.

Answer 4

specific - freezing is a transformation of state (from liquid to good) simply by decreased temperature. this suggests the debris grow to be much less energetic, subsequently they arrive closer consisting of much less vibration, forming an excellent mass. If the liquid is greater dense, the debris are already closer jointly/there are greater of them in one given section. this could make it much less annoying to freeze at a decrease temperature. in spite of if the reactivity and bonding properties of the customary debris have a much better result than the density, looking on which element you're conversing approximately.

Answer 5

No this does not affect the freezing point but it might take longer to cool down .

Answer 6

hey! thats my science fair Question. i havnt solved it yet. sorry!