Water freezes at 32 degrees Farenheit right?

Question

But does a certain surface like asphalt or concrete affect the freezing point? Like, does a surface need to be 32 degrees in order to freeze water??? HELP!?

Right.. But does a certain surface like asphalt or concrete affect the freezing point? Like, does a surface need to be 32 degrees in order to freeze water??? HELP!?

Answer 1

When removing heat from water, the temperature will cool until you reach 32 F. At that point, heat removal will be isothermal until all the water has frozen. Then, the temperature will start dropping again as you continue to remove heat from the ice. The phase change itself occurs isothermally (i.e. at constant temp).

So at 32 F, H2O can be either water or ice or any percent mix of the two. If a surface is above 32F, there is no danger of ice.

Answer 2

Yes you are correct water does freeze at 32 degrees. And no surfaces like asphalt or concrete does not make the freezing point a higher or lower temperture. However, the ground along with the air must have lowered to 32 degrees so yes the last part of your question is correct as well.

Answer 3

But if the water has salt in it, it will have to be below 32 F to freeze. And there is some salt on dirt and on roads, and the water will pick that up. All this might change the freezing point down to 28 F.

If there is a wind blowing over the water, there will be more evaporation of the water than in still air, and this will lower the temperature of the water. In that case, water that starts at 35 F might be cooled down to 32 or even 28 F, and then it will certainly freeze.

Answer 4

(farenheit-32) x 5/9= celcius. and yes, water does freeze at 32 degrees farenheit, which is equal to 0 degrees celcius. a surface must be 32 degrees for water to freeze, or around that. one thing certain is that the air must be 32 degrees or lower for water to freeze. its ok if the surface is a couple of degrees above 32, because the air will freeze the water enough. as long as the surface is no more that 1 or 2 degrees above 32, it will be ok.

Answer 5

Yes water freezes at 32 degrees Fahrenheit

Answer 6

Water can freeze at 0°C (32°F) but it doesn't have to do so. Under certain circumstances, water can remain liquid well below 0° even down to -40°. It is called supercooled water and it commonly occurs in cloud and in freezing fog and rain. Many people have discovered supercooling when they try to chill their beer quickly in the freezer.

Water will not freeze if the temperature is above the freezing point but ice at the triple point, which is slightly above 0°C, will remain as ice and not melt unless further heat is added.

Answer 7

If you pour water at exactly 32 degrees onto a surface that is warmer, heat will flow into the water keeping it from freezing. Not only that, but as water freezes, it needs to lose more heat from its molecules, the latent heat of fusion .... so at exactly freezing point you still get heat out of water before it turns to ice ... so anything that can add heat to the water or even keep it from giving up heat will keep it from freezing.

Answer 8

EXCELLENT QUESTION! I was wondering the same thing also, becuase I have noticed that. Yes, water freezes at 32 degrees, but it all depends how warm or cold the ground temperature is. Just becuase the air temperature says 32 or below doesn't mean the ground itself is the same temperature.

Answer 9

asphalt and concrete as well as the ground can hold heat from the day and be warmer than the air around it. this would prevent water from freezing on the road when the air is freezing.

Answer 10

In some primitive tribes this is a method of determining guilt or innocence, H2. It is assumed that an innocent person will have a bunghole as cool as a cucumber, whereas a guilty conscience will produce a veritable ring of fire. A chunk of ice is wedged between the accused's cheeks and the meltdown time is measured. Records show that virtually every defendant thus tried is found guilty - a glowing testament to excellent pretrial police work, no doubt.