Originally by: duckmonster

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Guys guys I'm starting a class action against Al gore for inventing the internet for the psychological trauma of allowing STUPID PEOPLE TO POST STUPID THREADS.

Anyone up for it?

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Originally by: the caligynephobist

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yea, so my dishwasher stopped working on the weekend.
i set it on fire hoping to fix it.

STILL BROKEN.
NEED TO SUE NOW!

<talk about legal stuff and hope no-one notic

Originally by: Galya Tuvern

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Edited by: Galya Tuvern on 11/12/2007 12:45:13

Originally by: flashfreaking

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Originally by: Sister Impotentata

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Originally by: Inflexible

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I wonder if you are able to heat up water over boiling temperature in America.

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Nope. And if you have a trick for it, please do share.

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umm can't you put the system under pressure and superheat the steam/water to above the normal sea level atmospheric boiling temperature of 100C/212F... or you could dissolve something like salt (that has a higher boiling point than water) which causes the water to boil at a higher temperature because the salt must come out of solution...

and yes...I am American

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Originally by: Avon

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Edited by: Avon on 11/12/2007 14:08:56
(Unless you are going to argue that steam is not water?)

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Originally by: Psycho John Petrucci

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If there's any point where you feel it's too difficult, then just stop. Because you just, you don't have it, you're just not good.

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Originally by: Avon

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Edited by: Avon on 11/12/2007 14:08:56

Originally by: Sister Impotentata

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If you put it under pressure it will boil at a higher boiling temperature. Add more heat and it will just boil faster, not get hotter.

Note that the OQ didn't say "heat water above 100C" or summat.

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Boil water.
Collect steam and put under pressure.
Heat steam.

Heated steam under pressure = water heated > boiling point (because it has already boiled at a lower temperature to produce the steam.)

The guy is right when he suggests superheating the steam. (Unless you are going to argue that steam is not water?)

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Quote:

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I wonder if you are able to heat up water over boiling temperature in America.

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Originally by: Galya Tuvern

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That's girl but yeah that is what I meant, thanks for that

and I must ask...if steam produced from water is not H20 (H-0-H) can you tell me please what it is? As we all know water has three states...liquid, gaseous and solid correct? Let's not get into sublimation this thread is pedantic enough already :P

Furthermore, he specifically said water

Quote:

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I wonder if you are able to heat up water over boiling temperature in America.

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My dad enjoys beer with salt but I doubt he likes coffee that way

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Quote:

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I wonder if you are able to heat up water over boiling temperature in America.

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Originally by: Psycho John Petrucci

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If there's any point where you feel it's too difficult, then just stop. Because you just, you don't have it, you're just not good.

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Originally by: Avon

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Edited by: Avon on 11/12/2007 16:42:15
You can superheat liquid water in a microwave oven.
The water towards the center of the containing vessel can be well above the boiling point of the water around it.

That is why it isn't a good idea to stir a drink with a metal spoon after it has been heated in a microwave. The sudden heat transfer through the metal of the spoon can allow the water in the middle to boil, often causing it to explode out of the container. (Clarification: The superheated water becomes steam, forcefully displacing the now rapidly heating water around it).

If you are dumb enough to try this yourself, I would advise standing well back and throwing the spoon in to the vessel.

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Originally by: Erotic Irony

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Originally by: Avon

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Edited by: Avon on 11/12/2007 16:42:15
You can superheat liquid water in a microwave oven.
The water towards the center of the containing vessel can be well above the boiling point of the water around it.

That is why it isn't a good idea to stir a drink with a metal spoon after it has been heated in a microwave. The sudden heat transfer through the metal of the spoon can allow the water in the middle to boil, often causing it to explode out of the container. (Clarification: The superheated water becomes steam, forcefully displacing the now rapidly heating water around it).

If you are dumb enough to try this yourself, I would advise standing well back and throwing the spoon in to the vessel.

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best post in thread so far, you're the best avon

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Originally by: Avon

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The sudden heat transfer through the metal of the spoon can allow the water in the middle to boil, often causing it to explode out of the container. (Clarification: The superheated water becomes steam, forcefully displacing the now rapidly heating water around it).

If you are dumb enough to try this yourself, I would advise standing well back and throwing the spoon in to the vessel.

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Originally by: Psycho John Petrucci

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If there's any point where you feel it's too difficult, then just stop. Because you just, you don't have it, you're just not good.

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Originally by: Avon

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If you are dumb enough to try this yourself

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Originally by: Sister Impotentata

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You cannot heat liquid H2O above its boiling point. In America or anywhere else. A pure liquid's boiling temperature is a function of pressure. You can heat steam to above the boiling point of water at a given pressure. You can also have steam below the temperature of boiling water. But that's advanced discussion for next week's class.

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Originally by: Sister Impotentata

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Actually the scratches on your well-used metal spoon provide nucleation sites. Likewise this trick works best with a brand new glass bottle and not a used coffee mug. The mug will have scratches that allow the boil to propagate. Good point, misleading explanation.

Anyway I should have been more obvious. I tried to make a nod to the possibility of special cases when I mentioned that the supercooled steam was for the advanced class.

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Originally by: Avon

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Common misunderstanding.
If the water was 100% pure you might have a case.

What actually causes it is the break down of the insulation (in this case the water around the superheated fluid), as caused by the introduction of a thermal regulator (the spoon).
The superheated liquid attempts to propogate along the regulator, bringing it in to contact with the air.
This allows a sudden pressure change (like opening the end of an inflated balloon). The depressurisation of the superheated liquid turns it to steam, which expands rapidly, edjecting the remaining water from the container.

The change would not be explosive if it was due to nucleation. This would only allow the water to boil, but the pressure of the water around it would still prevent it from becomming steam.

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Originally by: Psycho John Petrucci

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If there's any point where you feel it's too difficult, then just stop. Because you just, you don't have it, you're just not good.

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Originally by: Avon

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Common misunderstanding.
If the water was 100% pure you might have a case.

What actually causes it is the break down of the insulation (in this case the water around the superheated fluid), as caused by the introduction of a thermal regulator (the spoon).
The superheated liquid attempts to propogate along the regulator, bringing it in to contact with the air.
This allows a sudden pressure change (like opening the end of an inflated balloon). The depressurisation of the superheated liquid turns it to steam, which expands rapidly, ejecting the remaining water from the container.

The change would not be explosive if it was due to nucleation. This would only allow the water to boil, but the pressure of the water around it would still prevent it from becomming steam.

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Originally by: Fink Angel

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Umm, did most people here actually read the OP, or are have you all just finished training up Bandwagon Jumping to 5?

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Originally by: Sister Impotentata

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I'm going to consider this. You haven't sold me on it yet though. I believe the change could still be explosive if due to nucleation on the spoon. Once you have a few bubbles, you get more nucleation off the bubbles. "Then they tell two friends, and they tell two friends..."

Note that Galya mentioned boiling chips. You throw a couple bumpers in a tube of superheated water, you get the same bang. And bumpers definitely work on nucleation, not this thermal propagation technique of which I know nothing, but am looking up.

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Originally by: Clevermonkey

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It is easy for you to sit there like THE VEIN, SELF CENTERED, A**HOLE YOU ARE because you were not effected by this. There are some really angry people out there. I suspect if you were really effected by this calamity you would be talking a different game. I can tell because you only like to hear yourself talk and you don't listen because you are a F***ING M***N. So F***Y** and the horse you rode in on.

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Originally by: Rhadamantine

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Originally by: Clevermonkey

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It is easy for you to sit there like THE VEIN, SELF CENTERED, A**HOLE YOU ARE because you were not effected by this. There are some really angry people out there. I suspect if you were really effected by this calamity you would be talking a different game. I can tell because you only like to hear yourself talk and you don't listen because you are a F***ING M***N. So F***Y** and the horse you rode in on.

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Remember, Affect is a Verb and Effect is a Noun.

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Originally by: Avon

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Originally by: Rhadamantine

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Originally by: Clevermonkey

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It is easy for you to sit there like THE VEIN, SELF CENTERED, A**HOLE YOU ARE because you were not effected by this. There are some really angry people out there. I suspect if you were really effected by this calamity you would be talking a different game. I can tell because you only like to hear yourself talk and you don't listen because you are a F***ING M***N. So F***Y** and the horse you rode in on.

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Remember, Affect is a Verb and Effect is a Noun.

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Effect is physical, affect is emotional.

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Originally by: Rhadamantine

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I was told to remember the difference as above, because it spells R A V E N.

I wonder if my English teacher is dead now.

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