Generally colder water will freeze faster. If you put both hot and cold water into a freezer, the hot water first has to get cold, so the cold water has a head start towards freezing....but let's look at some factors that might change the issue for particular situations-- 1) Hot water could melt accumulated ice in the freezer, resulting in defrosting of the walls and perhaps better efficiency. 2) Hot and cold water might be slightly different in dissolved minerals, so they may not have the same freezing point. 3) If you put both into a freezer right next to each other, the two pans might have to equilibrate (get to the same temperature by sharing the heat). Any object will lose heat at a set rate governed by the temperature differential : the bigger the difference in temperature the more heat is dissipated. In the case of water the hot water does lose more heat to the surrounding air but as the difference between the two closes so does the rate of heat loss. therefore if a cup of boiling water cooled to 50 degrees in 1 minute another cup of water at 50 degrees may have only cooled to 30 degrees. Please note that the numbers here are purely for example purposes. Footnote: If you take water that has been boiled and allowed to cool to room temperature, it will freeze faster than an equal quantity of tapwater brought to room temperature without boiling.
because water freezes at 31 degrees and cold water is closer to 31 degrees.. i know someone is going to say water freezes at 32 degrees..
I think what you meant to ask was "Does cold water freeze faster than hot water?" It does because its temperature doesn't have to change as much.
Mpemba effect ,water evaporates faster so it has less water so it freezes faster
No
because water is generally cold unless heated in a kettle. Coffee on the other hand is warm when you make it so if the water is colder to start with it will take less time to freeze.
Sugar sinks at the same rate in warm or cold water. Sugar dissolves faster in warm water.
warm water will rust metal faster
If it is cold water, than it is cold. if it is warm water, it is normal
Yes. Water vapor in the air can condense (like the water that forms on your cold glass of soda) and fall. If the temperature is warm, the water falls as rain. If the temperature is cold enough, the water freezes and falls as hail or snow.
yes
warm water because the cold water will freeze the cell wall.
no because the cold water speeds up the process by starting it
Cold water, less energy must be removed from cold water to make it freeze. warm water has more energy which needs to be removed before it freezes. it is an urban myth that warm water freezes faster.
cold water
Salt dissolves faster in cold water
cold water faster
It sinks faster in hot water than warm or cold
because water is generally cold unless heated in a kettle. Coffee on the other hand is warm when you make it so if the water is colder to start with it will take less time to freeze.
An unresolved question! See Mpemba Effect in wikipedia for the best experimental conditions for this anomaly!
Warm water of course.
Warm water doesnt actually freeze faster. Distilled water (which you can get from boiling and collecting the steam) freezes at 0C or 32F. Water (such as tap water) with impurities will only freeze at a lower temperature.