/sci/ - Science & Math

>>1974110

Because Chemistry says so

idk but it's useful for preventing roads from freezing over.

The salt impedes the freezing.

The ions of the salt inhibit the formation of Hydrogen bonding necessary for water to become solid.

The presence of salt, or any solute really, makes it more difficult for ice crystals to form. Also the salt isn't melted, it's dissolved.

Because saltwater isn't 50-50 salt and water, obviously.

>>1974148
although "inhibit" may not have been the best word for me to use in this context...

Who the fuck knows dude. Chemistry is an enigma.

the melting point is determined by the organization of the molecules, and their respective intermolecular forces, and that's all.

well there are some other factors like pressure and volume, but that's mainly it.

>>1974156
As I said, Intermolecular bonding (hydrogen bonds)
They depend on charge, the ions interrupt this.

>>1974151
>Also the salt isn't melted, it's dissolved.
please explain diff between something in solution and something melted

eg

acetic acid melts at 16 C

solution of acetica acid in water below and above 16

NO FUCKING DIFFERENCE

for why

things in solution don't have individual melting points any more

I'd much rather be on Minecraft than homework threads, perhaps one more post...

>>1974183
>>1974180
Same reason, except here it's the H-bonding from water interrupting the COOH groups from their own H-bonds.

>lrn2 solutions vs. melting
(I need to lrn2 explaining the same thing)

ok

OP here

melting point wood, maybe 1300 C
burns before melts
melting point wood actually infinity

for why?

>>1974308

No, wood is mostly carbon and the melting of carbon is around 4500K at around 0.01GPa.

>>1974320
noh wood is mostly

(C6H10HO6)n

cellulose

mostly hydrogen so melting point of wood actually -259 C

derp

>>1974334
So wood is a liquid? Cool.

>>1974334
Noh

by molecular weight, would is mostly oxygen, so melting point is -219 C

>>1974338
wood is a gas at standard conditions for temperature and pressure

OP here

what is wood's triple point?

9.35 rounds UP to 9.4 to two sig figs

-9.35 rounds UP to -9.5

PS i have a degree in maths

i disagree with the pic related

>>1974349

Ignore the trolls. Cellulose breaks down under high temperatures into water, carbon, and carbon monoxide. The only solid component left is carbon.

The triple point of carbon according to wikipedia is at 10.8 ± 0.2 MPa and 4600 ± 300 K

>>1974433
but i am the trolls

and you just tried to tell me the triple point of wood

i win 59 interent points

>>1974452

what trolls want you to believe

what is actually happening

LOL I TROL U!!!!1!!1!

what is the triple point of troll?