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JEEMAIN and NEET
>>
Chemistry
>>
Chemical Thermodynamics
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Q)
Given three reaction below,
N
2
(
g
)
+
3
H
2
(
g
)
⇋
2
N
H
3
(
g
)
;
Δ
H
1
,
H
1
(
g
)
+
C
l
2
(
g
)
⇋
2
H
C
l
(
g
)
;
Δ
H
2
,
N
H
3
(
g
)
+
3
C
l
2
⇋
N
C
l
3
(
g
)
+
3
H
C
l
(
g
)
;
−
Δ
H
3
. In the terms of
Δ
H
1
,
Δ
H
2
and
Δ
H
3
, heat of formation of
N
C
l
3
(
g
)
is
(a)
Δ
H
f
=
−
Δ
H
3
+
Δ
H
1
2
−
3
2
Δ
H
2
(b)
Δ
H
f
=
Δ
H
3
+
Δ
H
1
1
−
3
2
Δ
H
2
(c)
Δ
H
f
=
Δ
H
3
−
Δ
H
1
2
−
3
2
Δ
H
2
(d) None of the above
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