does temperature of water affect the time it takes water to boil or freeze?

Answer 1

Of course it does. If your water is at 99C, it will boil a lot faster than if you heat it from a 4C temperature.
Same is true fro the freezing part; although variations would depend on the presence of an open or closed container, as evaporative cooling will take place is water is allowed to escape.

Answer 2

Yes, it does.

Very warm water boils much more quickly than cool water, and cold water freezes much more quickly than warm water.

Pure water freezes at 32 degrees F (0 C) and it boils at 212 degrees F (100 C). If you consider that the water that comes out of your tap is at, say 60 degrees F, you can see that it only needs to cool by 28 degrees to freeze, while it needs to be heated 152 degrees to boil.

Generally, in the home, we freeze water by putting it in the freezer, and we boil water by putting it on the stove or in the microwave. The reason it boils more quickly than it freezes is because the methods we use at home for heating use more energy and exert a greater influence on the water than the methods we use to freeze it. In a controlled laboratory situation, I imagine you can freeze water pretty quickly by using some other substance to remove the heat, but at home we are stuck with a freezer, which works in a relatively slow manner.

The initial temperature of the water does matter, because you need to either remove the heat (energy) in it, or add to it to get it to either state. Where the temperature is on that line from 32 degrees F to 212 degrees F is going to have an impact on how quickly you can force the water to change temperatures and either freeze or boil.

Answer 3

Right, if the water is hot it will be able to reach the boiling point sooner than cold water, etc. Common sense.

But there is a myth, that hot water will freeze faster than cold water. That's ridiculous.
Place a glass of hot water, and a glass of cold water in the freezer and then watch how long it takes for each to freeze.
At first, the temperature of the hot water will decrease very quickly compared to the cold water. But the rate of the hot water temperature decrease will slow, and the cold water will freeze first of course.

It may cool off quite quickly at first due to evaporation and black body radiation, but the rate of heat loss will slow as it cools.

What is Temperature?
Temperature IS the measure of molecular vibration of the atoms. Atoms that are vibrating a lot, are said to be hotter than atoms or molecules that are not shaking very much ( cold).
Water molecules H-O-H ( H2O) are bent in the shape of a "V", and have a plus and minus end. The plus and minus ends are attracted to each other, so water clumps together, and exists as liquid. Other molecules such as Nitrogen N-N (N2), dont have a plus or minus side, and so, they dont stick together. They just bounc off each other like ping pong balls. That is why Nitrogen is a gas.
If you heat up the water, the molecules vibrate more and more, and eventually overcome the plus/minus attractive force, causing the water to shake apart and appear like a gas ( steam).
This is directly dependent on the pressure of the gas.
The vibration depends on the rate that the water molecules bang into one another. Therefore the boiling point of water ( and other liquids) is directly dependent on the atmospheric pressure.
Water boils at a lower temperature on the top of a mountain, making it harder to cook food ( maybe 180F, vs 212F at sea level 14 psi pounds per square inch).
If you put water in a vaccuum, it will boil right away, at room temperature. So just because a liquid is boiling, it doesnt necessairly mean that it is hot.

More Temperature.
If you cool an object until its atoms no longer have any vibrational energy, it is as cold as it can get. This coldest possible temperature is called absolute zero -273.15C. It is the beginning of the Kelvin scale, and is 0 K. This is the temperature scale that is used by chemists and physicists.

Air pressure: If you could measure one foot by one foot square, and add up all of the air molecules from the ground up to outer space, they would have a mass of about 2000 pounds !, or 14 pounds per square inch. The air molecules are banging into your body all the time due to the molecular vibration. The average force of the collissions, produces a force of 14 pounds on each square inch of your body, trying to crush it.
Water is not very compressible ( It doesnt get smaller when compressed ( much) ). Because the pressure is equal every where, inside and out, you dont notice the tremendous force.
But your TV picture tube is hollow, and inside is a vaccuum. All air molecules have been removed, so there is no force inside to prevent the air from crushing it. That is why the picture tube has o be very thick. The front of a TV tube is about 22 by 18 inches 22*18 is about 400 square inches. At 14 psi, that means there is a force of 14 psi * 400 square inches = 5600 pounds trying to crush the front of the tube.

Answer 4

i've got not heard this, yet right here is my handle it (and why it would not make experience to me): in case you have water at 211 ranges F, (one million degree under boiling) and you come approximately the warmth, how long is it going to take to boil? not very long, in certainty, at that temperature a number of it is going to already be boiling. in case you have an ice cube interior the pan, it is going to take lots longer to realize the boiling element. possibly there is a few difference interior the time it takes with temperatures that are closer mutually, or perhaps it somewhat is real for temperatures a undeniable quantity faraway from the boiling element ... ?

Answer 5

yes it does because if u start higher lets say 100 degrees than 50to get to a boil the 100 has a 50 degree head start and same as freezing

Answer 6

yes. i studied chemistry in hs and college. take a cooking therm and try the experiement at home.

one freezes faster than the other. it has to do with the moving molecules. the us govt has tons of free scient info on the net. go to www.firstgov.gov or try www.ed.gov

Answer 7

Only slightly

Answer 8

yes

Answer 9

I think you kinda answered your own question

Answer 10

this is common sense..ofcourse it does!