1. 2 3 4 T 5 6 (l)(g) (s)(g) 7 8 Eða: Sbr. lnP 1/T Hallatala = -  vap H/(zR)  -  vap H/R.

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Presentation transcript:

1

2

3

4

T 5

6 (l)(g) (s)(g)

7

8 Eða: Sbr. lnP 1/T Hallatala = -  vap H/(zR)  -  vap H/R

9 Almennt Vatn / H 2 O

10 (s)(g)

11 Fasareglan: F=C-P+2 F = Frelsisgráður / fjöldi breytistærða C = “Components”/fjöldi efna(1) P = “Phases”/ fjöldi fasa Sbr.: F=1-2+2=1 (t.d. T p ákvarðanlegt) F=1-1+2=2 (p og T). F=1-3+2=0 (p og T ákvarðað)

12 Ath: C  1; 1) C = 2: Blöndur tveggja efna: 1. Varmafræði: Óreiðubreyting blöndunar:Frjálsorkubreyting blöndunar:

13 Frjáls orka G vs T

14 Gufuþrýstingur kjörlausna(p) vs samsetning (x A ) / p vs x A :

Lausnir af líkum sameindum  kjörlausnir 15 P vs x A

Lausnir af ólíkum sameindum  raunlausnir Fráhrindi- kraftur CS 2  aceton Gufuþrýstingur meiri en hjá kjörlausnum 16 P vs x A

17 Henry´s lögmál vs Raoults lögm. Raunlausn: P vs x A

Gufuþrýstingur vs samsetning vökva (kjörlausn): Gufuþrýstingur vs samsetning vökva (x A ) og gufu (y A )(kjörl.): 18 P vs x A

19 P vs T: TbTb P=1atm

T b vs x A : 20

T b vs x A : 21

T b vs x A : Raunlausnir: 22

23

Raunlausnir / lausnir torleystra vökva Hexan og nitrobensen 24

25

26 Fasalínurit torleystra vökvablandna: