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Byju's Answer
Standard XII
Chemistry
Ideal Gas Equation
20% N2O4, m...
Question
20
%
N
2
O
4
, molecules are dissociated in a sample of gas at
27
o
C and
1
atm. Calculate the density of the equilibrium mixture.
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Solution
N
2
O
4
⇌
2
N
O
2
Initially
1
m
o
l
0
m
o
l
At eqm
1
−
0.2
0.4
Molecular mass of the mixture=
[
n
N
2
O
4
×
M
N
2
O
4
]
+
[
n
N
O
2
×
M
N
O
2
]
[
n
N
2
O
4
+
n
N
O
2
]
=
0.8
×
92
+
0.4
×
46
0.8
+
0.4
=
76.66
g
/
m
o
l
Ideal gas equation=
P
V
=
n
R
T
So,
P
V
=
m
M
R
T
or
m
v
=
P
×
M
R
T
Thus density=
d
=
m
v
=
1
a
t
m
×
76.66
g
/
m
o
l
300
K
×
0.08211
l
i
t
a
t
m
/
K
m
o
l
=
3.1162
g
/
l
i
t
.
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Similar questions
Q.
20%
N
2
O
4
molecules are dissociated in a sample of gas at
27
o
C
and 760 torr as:
N
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O
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⇌
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Calculate the density of the equilibrium mixture.
Q.
20
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molecules are dissociated in a sample of gas at
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Q.
At
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C
and 1 atm pressure,
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O
4
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O
2
. What is the density of equilibrium mixture of
N
2
O
4
and
N
O
2
at
27
o
C
and 1 atm?
Q.
Gaseous
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2
O
4
dissociates into gaseous
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O
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2
O
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(
g
)
⇌
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(
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