the rate of forwards reaction IS EQUAL TO the rate of backwards reaction
to lout
in a closed
system nothing -
in
concentration
7¥
(molding EQUILIBRIUM = -
forward & reverse reaction proceed at equal rates
Eg
wii i ini tieatii i iei iaonstsi.Y.pro
"" ducts remain constant
not
reactants
Eg
HABER PROCESS :
Nz (g) t SH , Cy) E
/ NH (g),
time " I SO ly)
• no products at start CONTACT PROCESS :
,
t O, Cgl F 2 SO , (g)
3. 1.6 LE CHAT EVER'S PRINCIPLE
.
be used to predict the effects of concentration
can
temperature pressure of
=
changes in , , on the yield reverseble reaction
if ( in pressure ,
a
change temperature , or concentration of reactant ) applied system at equilibrium
°
is to a ,
the equilibrium will shift to the
oppose change
each condition wnsireded
is
separately and turn
-
in
1. effect of temperature
Forward reaction =
EXOTHERMIC ( SH Dive) -
-
-
temp incl -
, equilibrium shifts to left Cen do thermic side) to oppose the change
" " FT
if tinct absorbs exothermal REVERSE reaction endothermic
energy ;
r -
=
1 SO , Cgl t
Oz Cgl ⇐
1503cg) reactant product
incl
yield to decd yield of
-
↳
,
"
e of less of
shifts (exothermic side) to
forward reaction = ENDOTHERMIC ISH ① ive) :
-
temp deed ; equilibrium to right oppose
the
change
if t deed SHIFT
,
-
decd
yield of reactant
,
incl yield of
product
1 SO , Cgl t
Oz Cgl ⇐
1503cg)
t t more of
less of
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