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Byju's Answer
Standard XII
Chemistry
Heat of Reaction
For which of ...
Question
For which of the following reaction
Δ
H
≠
Δ
U
:
A
H
2
(
g
)
+
C
l
2
(
g
)
→
2
H
C
I
(
g
)
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B
N
2
(
g
)
+
3
H
2
(
g
)
→
2
N
H
3
(
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
C
a
C
O
3
(
s
)
→
C
a
O
(
s
)
+
C
O
2
(
g
)
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Solution
The correct option is
A
H
2
(
g
)
+
C
l
2
(
g
)
→
2
H
C
I
(
g
)
△
H
=
△
U
if
△
n
=
0
△
H
≠
△
U
if
△
n
≠
0
(a)
△
n
=
2
−
2
=
0
(b)
△
n
=
2
−
4
=
−
2
(c)
△
n
=
2
−
0
=
2
(d)
△
n
=
1
−
0
=
1
Suggest Corrections
0
Similar questions
Q.
For which of the following reactions,
K
P
=
K
C
?
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.
N
H
4
H
S
(
s
)
⟶
N
H
3
(
g
)
+
H
2
S
(
g
)
For this reaction relate
Δ
H
and
Δ
U
.
Q.
Take following sequential reactions :
2
H
2
O
(
l
)
⟶
2
H
2
(
g
)
+
O
2
(
g
)
N
2
(
g
)
+
3
H
2
(
g
)
⟶
2
N
H
3
(
g
)
C
a
C
O
3
(
s
)
⟶
C
a
O
(
s
)
+
C
O
2
(
g
)
N
H
3
(
g
)
+
C
O
2
(
g
)
+
H
2
O
(
l
)
⟶
N
H
4
H
C
O
3
(
a
q
)
We want to produce
0.10
mol
N
H
4
H
C
O
3
.
H
2
O
(
l
)
required is
y
100
mol.
What is
y
?
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