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Byju's Answer
Standard XII
Chemistry
Thermodynamic Processes
For which of ...
Question
For which of the following reaction
△
H
=
△
E
+
2
R
T
A
N
2
(
g
)
+
3
H
2
(
g
)
→
2
N
H
3
(
g
)
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B
N
2
(
g
)
+
O
2
(
g
)
→
2
N
O
(
g
)
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C
N
H
4
H
S
(
s
)
→
N
H
3
(
g
)
+
H
2
S
(
g
)
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D
P
C
l
5
(
g
)
→
P
C
l
3
(
g
)
+
C
l
2
(
g
)
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Solution
The correct option is
D
N
H
4
H
S
(
s
)
→
N
H
3
(
g
)
+
H
2
S
(
g
)
Δ
H
=
Δ
E
+
Δ
n
g
a
s
R
T
Comparing with
Δ
H
=
Δ
E
+
2
R
T
Δ
n
g
a
s
=
2
1
→
Δ
n
g
a
s
=
2
−
1
−
3
=
(
−
2
)
2
→
Δ
n
g
a
s
=
2
−
1
−
1
=
0
3
→
Δ
n
g
a
s
=
1
+
1
−
0
=
2
4
→
Δ
n
g
a
s
=
1
+
1
−
1
=
1
Suggest Corrections
0
Similar questions
Q.
Consider the following equilibria:
(1)
N
2
(
g
)
+
3
H
2
(
g
)
⇌
2
N
H
3
(
g
)
(2)
N
2
(
g
)
+
O
2
(
g
)
⇌
2
N
O
(
g
)
(3)
P
C
l
5
(
g
)
⇌
P
C
l
3
(
g
)
+
C
l
2
(
g
)
Choose the correct statement(s):
Q.
For which of the following reactions, the degree of dissociation cannot be calculated from the vapour density data
I.
2
H
I
(
g
)
⟶
H
2
(
g
)
+
I
2
(
g
)
II.
2
N
H
3
(
g
)
⟶
N
2
(
g
)
+
3
H
2
(
g
)
III.
2
N
O
(
g
)
⟶
N
2
(
g
)
+
O
2
(
g
)
IV.
P
C
l
5
(
g
)
⟶
P
C
l
3
(
g
)
+
C
l
2
(
g
)
Q.
Match List I with List II and select the answer from the given codes
List I List II
A.
C
(
s
)
+
O
2
(
g
)
⟶
C
O
2
(
g
)
1.
Δ
H
=
Δ
U
+
R
T
B.
N
2
(
g
)
+
3
H
2
(
g
)
⟶
2
N
H
3
(
g
)
2.
Δ
H
=
Δ
U
C.
N
H
4
H
S
(
s
)
⟶
N
H
3
(
g
)
+
H
2
S
(
g
)
3.
Δ
H
=
Δ
U
−
2
R
T
D.
P
C
l
5
(
g
)
⟶
P
C
l
3
(
g
)
+
C
l
2
(
g
)
4.
Δ
H
=
Δ
U
+
2
R
T
E.
2
S
O
2
(
g
)
+
O
2
(
g
)
⟶
2
S
O
3
(
g
)
5.
Δ
H
=
Δ
U
−
R
T
Q.
Match List I with List II and select the answer from the given codes.
List I List II
A.
C
(
s
)
+
O
2
(
g
)
⟶
C
O
2
(
g
)
1.
Δ
H
=
Δ
U
+
R
T
B.
N
2
(
g
)
+
3
H
2
(
g
)
⟶
2
N
H
3
(
g
)
2.
Δ
H
=
Δ
U
C.
N
H
4
H
S
(
s
)
⟶
N
H
3
(
g
)
+
H
2
S
(
g
)
3.
Δ
H
=
Δ
U
−
2
R
T
D.
P
C
l
5
(
g
)
⟶
P
C
l
3
(
g
)
+
C
l
2
(
g
)
4.
Δ
H
=
Δ
U
+
2
R
T
E.
2
S
O
2
(
g
)
+
O
2
(
g
)
⟶
2
S
O
3
(
g
)
5.
Δ
H
=
Δ
U
−
R
T
Q.
For which of the following reactions, the degree of dissociation cannot be calculated from the vapour density data
I
.
2
H
I
(
g
)
⇌
H
2
(
g
)
+
I
2
(
g
)
I
I
.
2
N
H
3
(
g
)
⇌
N
2
(
g
)
+
3
H
2
(
g
)
I
I
I
.
2
N
O
(
g
)
⇌
N
2
(
g
)
+
O
2
(
g
)
I
V
.
P
C
l
5
(
g
)
⇌
P
C
l
3
(
g
)
+
C
l
2
(
g
)
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