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eg.contracts when heated.

2006-06-15 14:24:42 · 10 answers · asked by Anonymous in Science & Mathematics Chemistry

10 answers

Water, when heated from a solid to liquid state, but ultimately in a gaseous state it again expands. It still obeys all the laws of chemistry, but the bonds just arrange themselves in a more space efficient manner in liquid than in solid form.

And moses with a P, no metals exist with the properties you say. It is physically impossible, sorry man, but I'm a biochem major and it's my job to know what stuff does under different stresses, and nothing does what you claim. However, if you do have a material that does this, get in touch with me, we'll talk to the patent office, and we'll license it out to companies for billions of dollars.

2006-06-15 14:28:56 · answer #1 · answered by Austin Montgomery 2 · 0 0

A GREAT MANY THINGS DO NOT EXPAND WHEN HEATED.
THE EXPANSION PHENOMENON IS MOSTLY ASSOCIATED WITH SOLIDS AND LIQUIDS BUT DOES NOT APPLY TO A CONTAINED GAS AS THERE IS NO ROOM FOR EXPANSION DUE TO THE SIZE OF THE CONTAINER BEING SET. THE CONTAINED GAS DOES SHOW AN INCREASE IN PRESSURE WHICH IS FORCE EXERTED ON THE CONTAINER PER SQUARE AREA UNIT
(PSI=POUNDS PER SQUARE INCH)

THE REFERENCE TO THE ONE THING THAT DOES NOT EXPAND WHEN HEATED IS A COMMON MYTH ABOUT WATER WHICH DOES EXPAND EVEN AS ICE WHEN HEATED BUT HAS A DRASTIC DROP IN VOLUME WHEN THE ICE MELTS (CHANGE OF PHYSICAL STATE) THAT OVERSHADOWS THE INCREASE IN VOLUME DUE TO HEATING.

2006-06-15 21:45:20 · answer #2 · answered by C. M. R 2 · 0 0

Water contracts between 0 and 4 deg C

2006-06-15 21:27:02 · answer #3 · answered by Anonymous · 0 0

There are probably many compounds that contract when heated to melting but I know that Ice contracts when heated to melting point and changes into water

2006-06-15 21:37:56 · answer #4 · answered by Alan G 3 · 0 0

Water under 4 degrees.

2006-06-15 21:44:25 · answer #5 · answered by Science_Guy 4 · 0 0

Others have mentioned water already, but there are other compounds that exhibit this behavior. Zirconium tungstate is one that I know of (you can search the web for it and find a lot of information). You can also look for "negative thermal expansion" or "non-uniform thermal expansion" if you want to find a great deal of information.

2006-06-15 21:38:18 · answer #6 · answered by chabuhner 1 · 0 0

Water expands when it freezes and turns into ice. I believe it is the only substance to do so.

2006-06-16 08:18:50 · answer #7 · answered by xox_bass_player_xox 6 · 0 0

apparently the t in Wha

2006-06-15 21:35:34 · answer #8 · answered by garfield 2 · 0 0

not everythin g expands when heated, but soem metals are know for thoses properties

2006-06-15 21:27:51 · answer #9 · answered by SANCHO 3 · 0 0

ice

2006-06-15 21:27:49 · answer #10 · answered by Brainiac 3 · 0 0

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