If the water is initially hot,
cooled water at the bottom is denser than the hot water
at the top, so no convection will occur and the bottom part will start freezing while the top is still warm. This effect, combined with the evaporation effect, may make hot water freeze faster than cold water in some cases.
Does hot water freeze faster than cold water Mythbusters?
It's an age-old question with a simple answer:
no
. When the temperature of the water in each container reaches just about 0°C it will undergo the same changes as it moves from a liquid to a solid, and it will take the same amount of time to begin forming tiny ice crystals. …
Do ice cubes freeze faster with hot water?
Correspondingly, the covalent bonds within the water atoms shrink and lose energy. This process is akin to cooling off. Essentially, hot water already closely resembles cool water on a molecular level. The energy in hot water is wound up so tightly that when it is released, it cools and
freezes faster than cold water
.
Does hot water freeze faster than cold Reddit?
In general, no.
Hot water does not freeze faster than cold water
.
Do hot water lines freeze first?
If the water is initially hot, cooled water at the bottom is denser than the hot water at the top, so no convection will occur and
the bottom part will start freezing while the top is still warm
. This effect, combined with the evaporation effect, may make hot water freeze faster than cold water in some cases.
What liquid freezes the fastest?
Water
did freeze the fastest with an average of 56.6 minutes.
Does hot water make clear ice?
“
Boiling water does not make clear ice
. It may make ice a little bit clearer than without, but it makes no significant difference compared to using directional freezing.” There are two methods of directional freezing to try at home—one more involved than the other, but both equally as effective.
Why does hot water make clear ice?
The reason:
hot water holds less dissolved air than cold water
. Those bubbles in the center of an ice cube come from air dissolved in the water.
Does hot water freeze faster in the freezer?
Yes — a general explanation.
Hot water can in fact freeze faster than cold water
for a wide range of experimental conditions. This phenomenon is extremely counterintuitive, and surprising even to most scientists, but it is in fact real. It has been seen and studied in numerous experiments.
How long does it take for cold water to freeze?
In a freezer, it will take from 1 hour to two hours if you what to get ice cubes at a temperature of 0° F. If your water is cold or really hot, the water will freeze even faster (
around 45 minutes
).
Does hot water flow faster than cold?
Molecules in a liquid have enough energy to move around and pass each other. …
Warm water has more energy than cold water
, which means that molecules in warm water move faster than molecules in cold water.
Is cold water harder than warm water?
Cold water has a higher density than warm water
. Water gets colder with depth because cold, salty ocean water sinks to the bottom of the ocean basins below the less dense warmer water near the surface.
Will water pipes freeze at 30 degrees?
There is no simple answer
. Water freezes at 32 degrees Fahrenheit, but indoor pipes are somewhat protected from outdoor temperature extremes, even in unheated areas of the house like in the attic or garage. … As a general rule, temperatures outside must drop to at least 20 degrees or lower to cause pipes to freeze.
Should I run hot water to keep pipes from freezing?
Running water through the pipe—even at a trickle—helps prevent pipes from freezing. Keep the thermostat set to the same temperature during day and night. … If you plan to be away during cold weather, leave the heat on in your home, set to a temperature
no lower than 55° F.
At what temperature should you run water to keep pipes from freezing?
The Minimum Temperature to Keep Pipes From Freezing
As a general rule, the “temperature alert threshold” for freezing pipes is
about 20 degrees Fahrenheit
.
What liquids dont freeze?
All that said, the only liquid that does not even freeze at the lowest possible temperature (“absolute zero”) is
liquid helium
. To turn that into a solid you additionally need to put it under pressure.
