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Cold water requires a higher temperature elevation than warm water does, and therefore will take longer to heat to boilinIf you start with hot water there is not enough difference in temperature from top to bottom to create an effective convection loop, because hot stuff only rises while in the presence of cold stuff to rise above. Warm water promotes a slower convection loop and hence will take longer for "ALL OF THE WATER" to hit 212 degrees.
according to scientists, the notion that a body of cold water will reach boiling temperature more quickly than an identical body of hot water under the same parameters is simply false.
This kitchen myth may have started as a way to encourage people to cook with cold water, not hot, which can contain more impurities. It may also have its origins in the fact that cold water generally gains heat more rapidly than water that is already hot, though it will not boil faster.
But under the right circumstances, the reverse phenomenon can occur, and hot water can freeze more quickly than cool water.
THE BOTTOM LINE
Cold water does not boil faster than hot water, but hot water can freeze more quickly than cool water.
What else can I help you with?
What kills germs faster cold or hot water?
hot water
Does powdered juice dissolve better faster in hot or in cold water?
Powdered juice dissolves faster in hot water, but tastes better in cold water.
Does salt or sugar dissolve faster in cold or hot water?
Sugar sinks at the same rate in warm or cold water. Sugar dissolves faster in warm water.
What boils quicker hot water or cold water?
water because when they make maple syrup it is 95% water and to make the syrup better they boil off the water
Are molecules in hot water different then molecules in cold water?
If you have the same volume of both then there are in cold water more molecules.
Does cold water boil faster than hot water?
No, hot water boils faster than cold water because it is already closer to the boiling point.
Does hot water boil faster than cold water?
Yes, hot water boils faster than cold water because it is closer to the boiling point and requires less energy to reach that temperature.
Dose hot boil faster than cold water?
Yes, hot water boils faster than cold water because the molecules in hot water have more energy and are already closer to the boiling point. This means it takes less time and energy to raise the temperature of hot water to the boiling point compared to cold water.
Why does hot water boils faster than cold water?
Hot water boils faster than cold water because it is closer in temperature to the boiling point. The boiling point of water is 100oC. If we had hot water at 90oC and cold water at 20oC, then the hot one would reach the boiling point of 100oC faster, since it only has 10oC more to go adn less heat needs to be added.ummm... hot water and hot water boil at the same rate...
Why does cold water boils faster than hot water?
Hot water boils faster than cold water because it is closer in temperature to the boiling point. The boiling point of water is 100oC. If we had hot water at 90oC and cold water at 20oC, then the hot one would reach the boiling point of 100oC faster, since it only has 10oC more to go adn less heat needs to be added.ummm... hot water and hot water boil at the same rate...
Which produces boiling water faster warm water or cold water?
I recommend putting hot water in your kettle and timing it getting to the boil, and repeating with the same volume of cold water. Then have a think about why this happens.
Why does hot water biol faster than hot water?
ummm... hot water and hot water boil at the same rate...
Does cold water heat faster than hot water?
No, hot water heats up faster than cold water.
Does Skittles dissolve faster in cold water or hot?
Probably hot water.
Does cold water heat up faster than hot water?
No, hot water heats up faster than cold water.
What can freeze faster hot water or cold water?
cold water
Does a boat sink in hot warm or cold water faster?
It sinks faster in hot water than warm or cold
