Chemical Forums
1 Hour
1 Day
1 Week
1 Month
Forever
October 09, 2024, 11:43:14 AM
Forum Rules
: Read This Before Posting
Home
Help
Search
Login
Register
Chemical Forums
Specialty Chemistry Forums
Chemical Engineering Forum
thermodynamics ques on partial molar volumes
« previous
next »
Print
Pages: [
1
]
Go Down
Topic: thermodynamics ques on partial molar volumes (Read 6048 times)
0 Members and 1 Guest are viewing this topic.
Hookes Law
New Member
Posts: 5
Mole Snacks: +0/-0
thermodynamics ques on partial molar volumes
«
on:
October 15, 2006, 01:27:06 PM »
hi, i atttached my question. any help would be great. thanks guys
Logged
Donaldson Tan
Editor, New Asia Republic
Retired Staff
Sr. Member
Posts: 3177
Mole Snacks: +261/-13
Gender:
Re: thermodynamics ques on partial molar volumes
«
Reply #1 on:
October 15, 2006, 09:16:41 PM »
Use the Gibbs Duhem Relation at fixed P & T to solve it.
Logged
"Say you're in a [chemical] plant and there's a snake on the floor. What are you going to do? Call a consultant? Get a meeting together to talk about which color is the snake? Employees should do one thing: walk over there and you step on the friggin� snake." - Jean-Pierre Garnier, CEO of Glaxosmithkline, June 2006
Hookes Law
New Member
Posts: 5
Mole Snacks: +0/-0
Re: thermodynamics ques on partial molar volumes
«
Reply #2 on:
October 16, 2006, 07:13:03 PM »
thats what i did but then i have V2 equal a cubic equation in x2, which is ok, however theres also an unknown V, which i somehow need to evaluate using the density given. but i dunno how
Logged
Donaldson Tan
Editor, New Asia Republic
Retired Staff
Sr. Member
Posts: 3177
Mole Snacks: +261/-13
Gender:
Re: thermodynamics ques on partial molar volumes
«
Reply #3 on:
October 17, 2006, 03:34:30 PM »
Gibbs-Duhem Relation at fixed P&T for binary mixture:
n
1
d?
1
+ n
2
d?
2
= 0
n
1
d?
1
= - n
2
d?
2
d?
1
/d?
2
= -n
2
/n
1
note: x
1
+ x
2
= 1
-n
2
/n
1
= -x
2
/x
1
= x
2
/(x
2
- 1)
d?
1
/d?
2
= V
1
/V
2
= x
2
/(x
2
- 1)
V
1
= 92.6 - 5.28x
1
+ 2.64x
1
2
= 92.6 + 5.28(x
2
- 1) + 2.64(x
2
- 1)
2
V
2
= V
1
(x
2
- 1)/x
2
= 89.96(1 - 1/x
2
) + 2.64x
2
(x
2
- 1)
Logged
"Say you're in a [chemical] plant and there's a snake on the floor. What are you going to do? Call a consultant? Get a meeting together to talk about which color is the snake? Employees should do one thing: walk over there and you step on the friggin� snake." - Jean-Pierre Garnier, CEO of Glaxosmithkline, June 2006
Print
Pages: [
1
]
Go Up
« previous
next »
Sponsored Links
Chemical Forums
Specialty Chemistry Forums
Chemical Engineering Forum
thermodynamics ques on partial molar volumes