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Gaseous State: Ideal Gases
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Dalton's law and mixtures of gases
NEET level
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Difficulty 1 of 3
ig004
A vessel contains
2
mol
of
N
X
2
and
3
mol
of
O
X
2
at a total pressure of
5
atm
. The partial pressure of
N
X
2
is
A
2
atm
B
3
atm
C
2.5
atm
D
5
atm
Answer: A
Dalton's law:
p
i
=
x
i
P
total
. Mole fraction of
N
X
2
is
2/5
=
0.4
, so
p
N
X
2
=
0.4
×
5
=
2
atm
.
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