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Water loses heat at a constant rate when cooled, so hotter water will normally take longer to freeze, having more energy to be removed.
The Mpemba Effect is a special phenomenon where hot water freezes faster than cold water. The discovery of this effect was made by a high school student named Mpemba in Tanzania, Africa in 1963. He noticed this phenomenon while making ice cream and was curious enough to make note of it. His teachers did not believe it was possible, and it took several years until university professors finally accepted his discovery.
What else can I help you with?
Does moving water freeze at a different rate than still water?
Yes, moving water typically freezes at a slower rate than still water due to the constant motion preventing the formation of ice crystals.
What is the freezing rate of hot water?
The freezing rate of hot water depends on various factors such as the initial temperature of the water, the surrounding temperature, and any impurities present. Generally, hot water will freeze faster than cold water due to the Mpemba effect, but it can vary based on these factors.
If the specific heat capacity of water were lower than it is ponds in the cold of winter would be what?
Ponds would freeze more easily in winter as water would lose heat more quickly and reach freezing temperature at a faster rate. This could have negative effects on aquatic life that relies on the pond environment for survival.
Does cool water freeze faster than warm water?
Absolutely. Water must achieve a temperature below 32°F before it can freeze. The closer the water is to room temperature, the quicker it will freeze. There is a phenomenon in which warm water freezes and cold water not: In some regions(e.g. Siberia) it is possoble to pour boiling hot water to the ground and it will freeze even before it hits the bottom. This is possible as hot water's molecules are moving more heavily than those of cold water. Therefore the surface of the water is bigger and warmth can leave the molecules faster. I remember a report of a experiment at one of the university's found hot water froze faster by a inute.
Can water evaporate in cold weather?
Yes, water can still evaporate in cold weather, but the rate of evaporation is slower compared to warmer temperatures.
How do cold air and hot water make the water freeze faster?
Cold air and hot water makes water freeze faster simply because the hot water is steaming and so the result is that there is less water to freeze. hot water = steam = less water less water = faster freeze cold air = faster freeze
Do hot water pipes freeze faster than cold water pipes?
Why is the second paragraph a contradiction of the first? If hot water pipes 'Absolutely' do not freeze faster than cold water pipes then why the comment about the cold water pipes having a larger diameter which causes them to freeze at a slower rate than the smaller hot water pipes? Also, the word then in the last line should be thanand there should be an a between usually and larger. And, piping should be changed to pipe.
Does moving water freeze at a different rate than still water?
Yes, moving water typically freezes at a slower rate than still water due to the constant motion preventing the formation of ice crystals.
Which water freezes the fastest colored water on plain water and why?
they both freeze the same rate
Does soda juice or water freeze at the same rate for variables?
Water takes longer
What has a higher rate of evaporation hot water or cold water?
A higher rate of evaporation has hot water.
How come liquids don't freeze at the same rate?
OK well, liquids expand at cold temperature while other matter contracts at cold temp. so the liquids expand and turn into ice. I need more info, How come liquids don't freeze at the same rate as what
What is the freezing rate of hot water?
The freezing rate of hot water depends on various factors such as the initial temperature of the water, the surrounding temperature, and any impurities present. Generally, hot water will freeze faster than cold water due to the Mpemba effect, but it can vary based on these factors.
Which will freeze the faster between salt water sugar water and tap water?
Tap Water because adding substances to the water (salt or sugar) reduce the rate at which water will form ice crystals, making it freeze at a lower temperature.
Effect of facial immersion in cold water on heart rate and blood pressure?
the heart rate decreases, to a low rate oof 20 to 30 beats per minute. especially in cold water.
Why does cold water freeze fastest then room temperature water and lastly warm water?
Because given that colder air is removing heat from the water, there is more energy to remove from the warmer water. The RATE of cooling is constant regardless of the initial temperatures of either the water or the air. Except for the following : The freezing of water requires two different reductions in heat. You first lower the temperature to 32°F (0° C). At that point the water will not spontaneously freeze, because molecular motion has to stop for ice crystals to form their orderly lattice. This is easily observed when cooling water in a very cold environment : the temperature will drop steadily and at the same rate until it reaches 32°F, at which point the decline will halt temporarily until ice crystals are formed. Once the water is entirely ice, the ice's temperature will resume its former rate of cooling. The heat required to melt ice or freeze water at its freezing point is called the "heat of fusion", and a similar but varying heat is required for all other substances that experience a change in state from liquid to solid.
How does cold water affect how salt dissolves?
Cold water simply slows down the rate at which salt dissolves.
