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Boiling water experiment

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By *icketysplits OP   Woman
over a year ago

Way over Yonder, that's where I'm bound

Scientists are trying to find out why boiling water freezes faster than water at room temperature. Except, neither froze on Newsnight.

Has any tried this? Will you try this?

'They' have had 22,000 responses to the question.

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By *histler21Man
over a year ago

Ipswich

Water doesn't freeze at room temperature - maybe they forgot that.

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By *empnbunkCouple
over a year ago

south coast

used to(many moons ago) get hot water and pour it all over the path during winter to make great ice slides always froze much quicker than cold water

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By *icketysplits OP   Woman
over a year ago

Way over Yonder, that's where I'm bound


"used to(many moons ago) get hot water and pour it all over the path during winter to make great ice slides always froze much quicker than cold water"

What made you use hot water rather than cold?

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By *upitersmileCouple
over a year ago

Manchester

This is just adding to my utter confuzzlement tonight!!!!

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By *icketysplits OP   Woman
over a year ago

Way over Yonder, that's where I'm bound


"This is just adding to my utter confuzzlement tonight!!!! "

I know. It's completely counter-intuitive but it is supposed to work. If I can find an ice cube tray I may give it go tomorrow.

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By (user no longer on site)
over a year ago

I really don't get why they are baffled. It's such an obvious phenomenon caused by the. Expansion of particles when heated reducing the insulation

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By *histler21Man
over a year ago

Ipswich

I thought is was something to do with the rate of heat loss is proportional to the temperature of the liquid: hot liquids lose heat energy quicker than cooler liquids.

Also hot water will evaporate quicker than cooler water - hence there might actually be less water arriving at the point of freezing.

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By *icketysplits OP   Woman
over a year ago

Way over Yonder, that's where I'm bound


"I really don't get why they are baffled. It's such an obvious phenomenon caused by the. Expansion of particles when heated reducing the insulation "

That sounds very clever. Do you think all 22,000 responses have said the same? They've opened this up to the general public now.

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By *icketysplits OP   Woman
over a year ago

Way over Yonder, that's where I'm bound


"I thought is was something to do with the rate of heat loss is proportional to the temperature of the liquid: hot liquids lose heat energy quicker than cooler liquids.

Also hot water will evaporate quicker than cooler water - hence there might actually be less water arriving at the point of freezing."

That sounds clever too. I'm liking this Fab brains trust.

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By *empnbunkCouple
over a year ago

south coast

really cant remember how we came to use hot water...just remember it working lol used to drive mum mental as we buggered off out with her kettle....lol

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By *adgeeMan
over a year ago

Sw Scotland


"used to(many moons ago) get hot water and pour it all over the path during winter to make great ice slides always froze much quicker than cold water

What made you use hot water rather than cold?"

It freezes quicker

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By *empnbunkCouple
over a year ago

south coast


"used to(many moons ago) get hot water and pour it all over the path during winter to make great ice slides always froze much quicker than cold water

What made you use hot water rather than cold?

It freezes quicker "

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By (user no longer on site)
over a year ago

simply boil the water and use hydrogen gas instant ice cubes for your drink

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By *ce WingerMan
over a year ago

P.O. Box DE1 0NQ

Summat to do wiv how da ice kristsl form mefinks

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By (user no longer on site)
over a year ago

Who cares anyway? as long as there is ice for my voddy I really don't care how long it took to freeze.... and if there isn't then I will drink it warm

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By (user no longer on site)
over a year ago

I'll test the theory with ice cubes up a woman's fanny..of course she has to be HOT!-or it just wont work properly...

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By *empting Devil.Woman
over a year ago

Sheffield

Ice cubes made with hot water are clearer - ie fewer air bubbles.

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By (user no longer on site)
over a year ago


"I really don't get why they are baffled. It's such an obvious phenomenon caused by the. Expansion of particles when heated reducing the insulation "
Well if the best scientists in the country, even the world, haven't decided an answer, then i don't really think the answer is obvious. You just haven't spotted the flaws in your own hypothesis.

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By *_n_JCouple
over a year ago

between Sheffield and Doncaster

The Mpemba effect is the assertion that warmer water can sometimes freeze faster than colder water. Although there is anecdotal support for the effect, there is no agreement on exactly what the effect is and under what circumstances it occurs.

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By (user no longer on site)
over a year ago

Boiled water has less impurities in it than tap water... Hence less bubbles in the ice cube and why it freezes faster...;-)

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By (user no longer on site)
over a year ago

I know the answer!

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By (user no longer on site)
over a year ago


"I know the answer! "

But will it help you to escape from Minxy's car...

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By (user no longer on site)
over a year ago


". You just haven't spotted the flaws in your own hypothesis."

Actually I am aware of the flaw. The problem is devising an experiment that will prove the theory.

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By *icketysplits OP   Woman
over a year ago

Way over Yonder, that's where I'm bound

Will the hardness/softness of water in different areas have an appreciable and measureable effect on this experiment?

I might get this kids to do this with me later. I need to get water from different areas....

I have no idea how to record our findings or what hypotheses I am proving.

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By (user no longer on site)
over a year ago

While you're all boiling kettles - can someone make me a coffee?

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By *icketysplits OP   Woman
over a year ago

Way over Yonder, that's where I'm bound


"While you're all boiling kettles - can someone make me a coffee? "

Will that freeze faster than plain water?

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By (user no longer on site)
over a year ago


"Scientists are trying to find out why boiling water freezes faster than water at room temperature. Except, neither froze on Newsnight.

Has any tried this? Will you try this?

'They' have had 22,000 responses to the question."

On the Newsnight progamme they had the samples inside a freezer part of a fridge and apparently the fridge was not working. As far as i am aware water does not freeze (hot or cold) at room temperature.

I suppose if you place boiling water in one sample and cold water in another sample, then place both samples in a freezer, there will be still be quite a bit of steam evaporating from the boiling water sample and consequently end up with less water in the boiling water sample due to evaporation, causing the hot water sample to eventually freeze quicker. (perhaps)

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By (user no longer on site)
over a year ago


". You just haven't spotted the flaws in your own hypothesis.

Actually I am aware of the flaw. The problem is devising an experiment that will prove the theory. "

You mean "prove the hypothesis" - a theory is a hypothesis that has been tested and proven correct ....

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