Physical Chemistry - Solutions and colligative properties

1

ANKIT MAHATO ·2009-05-01 03:19:56

ln ( P₂ /P₁ ) = Î”H_v(T₂ - T₁)/T₂*T₁*R

ln ( P₂ /22) = 540 * 15 / 288 * 303 * 2

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ANKIT MAHATO ·2009-05-01 03:38:01

john post 15 equation ... symbol ka meaning likh nahi rahe hai .. khud dekh lena . .because now i have to go ...

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JOHNCENA IS BACK ·2009-05-01 03:36:29

@ankit

wat is Clapeyron - Clausius equation actually i mean tell the meaning of all the symbols u used

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ANKIT MAHATO ·2009-05-01 03:35:05

But i still wonder how this equation came ??

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106

Asish Mahapatra ·2009-05-01 03:33:17

ankit most of the buks use this relation as Vant Hoff eqn only

@john: i thot of it wen my sir was explaining VP .. he explained it by using equilibrium so i thot and gave a question..

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ANKIT MAHATO ·2009-05-01 03:30:14

naaaaahhhhhhhiiiiiiiii ise vant hoff equation nahi bolete hai ... this equation was given by Clapeyron - Clausius

and this must be an old sum .. this was there in syllabus 3/4 yrs ago ..now it is not there :)

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JOHNCENA IS BACK ·2009-05-01 03:30:12

really a gud ques.........from where(which book/source)..........ashish??????????????????

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106

Asish Mahapatra ·2009-05-01 03:28:11

yes van't hoff equation only :)

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106

Asish Mahapatra ·2009-05-01 03:27:35

Yes ankits solution is correct.
IT is just the equilibrium of H₂O(l) -><- H₂O(g)
the equilibrium constant Kp = Vapour Pressure
So u can use the eqn given by ankit to find out the vapour pressure

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JOHNCENA IS BACK ·2009-05-01 03:25:48

r u talking bout van't hoff equation??????????

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ANKIT MAHATO ·2009-05-01 03:23:26

john actually this sum deals with chem .. eqb ...

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ANKIT MAHATO ·2009-05-01 03:22:56

P2 = 23.045 mm

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JOHNCENA IS BACK ·2009-05-01 03:22:42

wat's this formula?????????i never studied ne such thing in solutions!!!!!!!

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ANKIT MAHATO ·2009-05-01 02:27:43

no solvent .. no solute ... wat makes it a colligative sum ??

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JOHNCENA IS BACK ·2009-05-01 03:13:53

ok...............one more i m sending(iupac.....ha!ha!)

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ANKIT MAHATO ·2009-05-01 03:11:28

wait processing ...

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JOHNCENA IS BACK ·2009-05-01 03:11:13

ok....till then answer simple confusion!!!!!!!! thread

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ANKIT MAHATO ·2009-05-01 03:09:40

nahi .. no comments till my ans is confirmed ... ;)

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JOHNCENA IS BACK ·2009-05-01 03:08:15

how u got 23.15mm!!!![3]..using the formula

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ANKIT MAHATO ·2009-05-01 03:07:34

or 23.15 mm..

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JOHNCENA IS BACK ·2009-05-01 03:06:29

even i m getting 44mm by solving by a very weird method[3]

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ANKIT MAHATO ·2009-05-01 03:04:21

is it 44 mm

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ANKIT MAHATO ·2009-05-01 03:01:49

i think .. i got a breakthrough ...

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ANKIT MAHATO ·2009-05-01 02:55:07

where the temperature Tb is the boiling point temperature in degrees Celsius and the pressure P is in Torr.

got this formula .. but i don't think it is of any use :(

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ANKIT MAHATO ·2009-05-01 02:38:24

hint plz ...

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ANKIT MAHATO ·2009-05-01 02:30:27

oh
try karte hain .. new type of sum .. not seen before ..

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