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Byju's Answer
Standard XII
Chemistry
Reaction with Diazonium Salts
For the react...
Question
For the reaction, N
2
+ 3H
2
⇌ 2NH
3
, ∆H= …………….
A
∆U - RT
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B
∆U + RT
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C
∆U + 2RT
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D
∆U - 2RT
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Solution
The correct option is
D
∆U - 2RT
∆H = ∆U + ∆n
g
RT
Suggest Corrections
0
Similar questions
Q.
For
N
2
(
g
)
+
2
H
2
(
g
)
⇌
2
N
H
3
(
g
)
,
Δ
H
is equal to:
Q.
For
2
S
O
2
(
g
)
+
O
2
(
g
)
→
2
S
O
3
(
g
)
,
Δ
H
is equal to:
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.
Heat of reaction at constant pressure and heat of reaction at constant volume for the gaseous reaction
N
2
+
3
H
2
⟶
2
N
H
3
differ
(
Δ
H
−
Δ
U
)
by the amount:
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
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