Answer me this.

[kris]

Okay, here is a interesting question about chemistry. Hydrogen boils at -423.17°F and melts at -434.81°F. Between those two temperatures, is it a solid? What does it look like when it is melting at -434.81°F? How about when its solid or boiling? I know how the measure it, but how do they know that hydrogen boils at -423.17°F and melts at -434.81°F?

Same goes for the other extreme. Carbon melts at 6422°F and boils at 6917°F. Okay, myself, I've seen iron, steel, lead, etc when its melted...what does carbon look like when its melted and when it boils? Also, what is used to make it so hot that it melts then boils?

[hermunn123]

go ask my chemistry teacher.

[moondog]

below -434.81 degF, hydrogen is a solid. between -434.81 and -423.17, it's a liquid, then it boils, and becomes a gas.

[EightOhOne]

i hate chemistry

[primera man]

Originally posted by moondog
below -434.81 degF, hydrogen is a solid. between -434.81 and -423.17, it's a liquid, then it boils, and becomes a gas.

Took a Kiwi to answer eh !!!!

[kris]

Originally posted by kbslacker
What does it look like when it is melting at -434.81°F? How about when its solid or boiling?

Originally posted by kbslacker
what does carbon look like when its melted and when it boils? Also, what is used to make it so hot that it melts then boils?

[J SPEC SilEighty]

I sleep during chemistry. BOOOOOOORING class :help:

[1989 DX R]

The question is, why would you want superheated carbon? I think superheated plasma hydrogen is much more fun!

[Steel]

i wouldn't recommend being anywhere NEAR liquid hyrdogen, unless of course, you LIKE the idea of it crystalizing in your lungs and killing you painfully.

[1989 DX R]

There goes my plan for world domination...

[speediva]

I had this entirely elaborate post of mockery typed out, complete with charts, etc. However, seeing as how someone else beat me to the explanation, and the explanation is far more simplistic than my own, I will leave it as is!

In conclusion: Any element (perhaps any substance, but I lack the memory to back up that great a claim) is a solid when held below the melting point. Between the melting point and the boiling point it will be a liquid. At temperatures exceeding the boiling point, the element will vaporize and be gaseous.

[Gonthrax]

Hydrogen boils at -423.17°F and melts at -434.81°F. Between those two temperatures, is it a solid?

Between those temps it is a viscous liquid that could be called a solid. Even when it is in this condition sense it has only one valence electron it is very unstable and tends to bond with anything and everything it can. Also, when in solid form it...(Faaaaaak I've forgotten the word!@!!! Its when a substance goes directly from solid to gas..... some one help! It happens to snow all the time.) Well it goes directly from Solid to Gas form in small quantitys. As far as how it looks, gimmie a few min and I'll find ya some pics
Mmmmm atomic studies 255 fun fun fun

In conclusion: Any element (perhaps any substance, but I lack the memory to back up that great a claim) is a solid when held below the melting point. Between the melting point and the boiling point it will be a liquid. At temperatures exceeding the boiling point, the element will vaporize and be gaseous.

100% correct, to take it further any compound will exibit the same characteristics. Well, I retract that statement, there are a few exceptions but I can't remember exactialy what they are, I think it was one of the noble gasses though.

[moondog]

Originally posted by Gonthrax

Also, when in solid form it...(Faaaaaak I've forgotten the word!@!!! Its when a substance goes directly from solid to gas..... some one help! It happens to snow all the time.)

sublimates??


(been a long time since chemistry for the Whaleman )

[YogsVR4]

If I remember right, Hydrogen has those properties only at one atomosphere. The freezing point stays the same, but the melting and boiling point are preasure sensative.

Actually this is true for all melting and boiling points.













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[Polygon]

I don't think anyone knows what boiling or melted carbon looks like? If only you could sit in the sun and watch it break things down.