NOTES PDF STD
11/12
PHYSICAL
CHEMISTRY
CHEMISTRY
EQUILIBRIUM aA + bB cC + dD
-250
200
Ke =
[C]° [D]d 150
[Ajª [B]b 100
Concetraion
[C], [D]
AG° = 0 [AJ, [B]
AT EQUILIBRIUM
Time
K EMAIL:
, Chemmical equ.
but (Rote)jw & (Rate) blw
(Rote)o
AG 0
* Low d mas actiom :
aA + bB cC + dD
C
eq Kelw
depends omy temp. (not conc.)
Catalyt dodoes mot ottect the equ.
compositiom.
K (RT )Sng Amg =0 Temp 12-19 k
K, (P-, )ng Kp = ke
mole
k, >uit les
* Active maws
Jor 5oid pwe ig {
Active m a 5ovent
(or comst )
1
* Reactiom uote nt (a)
1)
2)
ahtt in tlw dir" n
blw
3)
in eq
* Temp. depemd amcy o cqu comst.
AH - TAS = -RT
Ke
Keq -AH° 1 45°
R T R
1
Key a- 303R a 303 R
AH > O → Em dothecmic <
4ve RT
AH°<0 Exothee mic <
Ta
-ve RT
11/12
PHYSICAL
CHEMISTRY
CHEMISTRY
EQUILIBRIUM aA + bB cC + dD
-250
200
Ke =
[C]° [D]d 150
[Ajª [B]b 100
Concetraion
[C], [D]
AG° = 0 [AJ, [B]
AT EQUILIBRIUM
Time
K EMAIL:
, Chemmical equ.
but (Rote)jw & (Rate) blw
(Rote)o
AG 0
* Low d mas actiom :
aA + bB cC + dD
C
eq Kelw
depends omy temp. (not conc.)
Catalyt dodoes mot ottect the equ.
compositiom.
K (RT )Sng Amg =0 Temp 12-19 k
K, (P-, )ng Kp = ke
mole
k, >uit les
* Active maws
Jor 5oid pwe ig {
Active m a 5ovent
(or comst )
1
* Reactiom uote nt (a)
1)
2)
ahtt in tlw dir" n
blw
3)
in eq
* Temp. depemd amcy o cqu comst.
AH - TAS = -RT
Ke
Keq -AH° 1 45°
R T R
1
Key a- 303R a 303 R
AH > O → Em dothecmic <
4ve RT
AH°<0 Exothee mic <
Ta
-ve RT
