Equilibrium Chemistry Worksheet Page 5
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68.
In the original set of calculations, the equilibrium concentrations of the
reactants and product were:
[NH
]
= 0.150 M
[N
]
= 0.425 M
[H
]
= 0.575 M
3
e
2
e
2
e
-4
o
and K
= 1.51 x 10
at 250
C.
P
Assume a 1.00 L container. What is the effect of adding 1.00 moles of
argon to this container? It will not participate in the reaction, but it will
change the partial pressures of all of the species.
Calculate the total number of moles of gas in the container.
n
=
total
Calculate the mol fraction,Χ, of each of the species after the addition of
the argon.
Χ
= ______
NH3
Χ
= ______
N2
Χ
= ______
H2
Χ
= ______
Ar
o
Calculate the pressure of this system, at 250
C.
Calculate the partial pressures of each of the species.
P
= ______
NH3
P
= ______
N2
P
= ______
H2
Calculate K
using these new equilibrium partial pressures.
P
What is the effect on the equilibrium of adding an inert gas?
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