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JEE Main Chemistry Class 11 Solutions Part 1 Questions
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© examsnet.com
Question : 33
Total: 100
A cylinder containing an ideal gas
(
0.1
m
o
l
of
1.0
d
m
3
)
is in thermal equilibrium with a large volume of
0.5
m
o
l
a
l
aqueous solution of ethylene glycol at its freezing point. If the stoppers
S
1
and
S
2
(as shown in the figure)are suddenly withdrawn, the volume of the gas in litres after equilibrium is achieved will be ______ .
(Given,
K
f
(water)
=
2.0
K
k
g
m
o
l
−
1
,
R
=
0.08
d
m
3
a
a
m
K
−
1
m
o
l
−
1
)
[NV, Jan.09,2020 (II)]
Your Answer:
Validate
Solution:
K
f
=
2.0
K
k
g
m
o
l
−
1
;
m
=
0.5
∆
T
f
=
K
f
m
=
0.5
×
2
T
initial
=
272
K
n
=
0.1
m
o
l
V
=
1
d
m
3
P
gs
=
n
R
T
V
=
0.1
×
0.08
×
272
1
=
2.176
a
t
m
After releasingpiston
P
1
V
1
=
P
2
V
2
2.176
×
1
=
1
×
V
2
V
2
=
2.18
d
m
3
© examsnet.com
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