The ammonia notes file in Chemistry is a comprehensive resource that provides a detailed explanation of the properties, structure, synthesis, and uses of this important chemical compound. The file is designed to guide students and researchers through the various aspects of ammonia chemistry, includ...
Reversible reactions attain
Dynamic equilibrium Crate of
forward is equal to
The rate
of backward reaction )
HAZERS PROCESS :
⇒ DH -9011mm
Nff
-=
342cg , 2NH3cg ,
forward reaction .
made The Creation ) @ equilibrium it will
Any change to system is try
to
Opposethe change
effect come : t No A He
of
will to I
System
conc
try
equilibrium will Shift forward
I Nz / Iv Ho
equilibrium shifts backward
ANH 3
equilibrium swift backward
IN Ha
shifts
equilibrium
forward
, A pressure I pressure
IN
4h01 2mA .
INEPT
242cg
exo
¥ It DH -= -
901071 moi
, Endo
3cg ,
A temp of the
system :
Shift to decrease the temp C endothermic side )
equilibrium
in this case - backwards -
te Hmp : equilibrium Shifts forward ( exothermic side ) to increase the temp -
Pressure
effect of :
A
pressure :
equilibrium shifts to decrease the
pressure C favours side with less moles
of gas
-
in this case - forward reaction )
I
pressure
:
eg .
shifts backwards .
Effect of forward & backward reaction
catalyst is on both
.
-
equilibrium does not swift position .
Manufacture of Ammonia :
conditions :
① increasing the Pressure
; yield B
}
Reagent Nz t Ha pressure increases the
increasing
-
.
,
lion )
! equilibrium
Fee of
catalyst Puttanna .
yield ammonia bio .
450°C omg
Kuip shifts forward .
200 Atm pressure But maintain
to
high pressure ,
require a pressure chamber -
DH 90 cost
2 t IN
3Hz € 2 NH 3 = - .
high
② Temp decrease ; yield ?
Nz : Hz Temp decrease favours the yield of
1 3 no ratio NH3 but it will decrease the
;
.
:
rate of reaction
→ Rate I Yield compromise
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