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Byju's Answer
Standard XII
Chemistry
Introduction
For which rea...
Question
For which reaction will
Δ
H
−
Δ
E
=
0
?
Assume that each reaction is carried out in an open container.
A
2
C
O
(
g
)
+
O
2
(
g
)
⟶
2
C
O
2
(
g
)
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B
P
C
l
5
(
g
)
⟶
P
C
l
3
(
g
)
+
C
l
2
(
g
)
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C
H
2
(
g
)
+
B
r
2
(
g
)
⟶
2
H
B
r
(
g
)
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D
C
(
s
)
+
2
H
2
O
(
g
)
⟶
2
H
2
(
g
)
+
C
O
2
(
g
)
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Solution
The correct option is
C
H
2
(
g
)
+
B
r
2
(
g
)
⟶
2
H
B
r
(
g
)
Δ
H
=
Δ
E
+
Δ
n
g
R
T
For reaction
H
2
(
g
)
+
B
r
2
(
g
)
⟶
2
H
R
r
(
g
)
Δ
n
g
=
0
, while for other
Δ
n
g
≠
0
Thus,
Δ
H
−
Δ
E
=
0
×
R
T
Δ
H
−
Δ
E
=
0
Suggest Corrections
0
Similar questions
Q.
Assume each reaction is carried out in an open
container. For which reaction will
Δ
H
=
Δ
E
?
Q.
Assume each reaction is carried out in an open container. For which reaction will be
Δ
H
=
Δ
U
?
Q.
Equilibrium constants for the following reaction at 1200 K are given.
2
H
2
O
(
g
)
⇋
2
H
2
(
g
)
+
O
2
(
g
)
;
K
1
=
6.4
×
10
−
8
2
C
O
2
(
g
)
⇋
2
C
O
(
g
)
+
O
2
(
g
)
;
K
2
=
1.6
×
10
−
6
The equilibrium constant for the reaction
H
2
(
g
)
+
C
O
2
(
g
)
⇋
C
O
(
g
)
+
H
2
O
(
g
)
at 1200 K will be:
Q.
The equilibrium constants for the following reactions at
1400
K
are given:
2
H
2
O
(
g
)
⇌
2
H
2
(
g
)
+
O
2
(
g
)
;
K
1
=
2.1
×
10
−
13
2
C
O
2
(
g
)
⇌
2
C
O
(
g
)
+
O
2
(
g
)
;
K
2
=
1.4
×
10
−
12
Then, the equilibrium constant
K
for the reaction,
H
2
(
g
)
+
C
O
2
(
g
)
⇌
C
O
(
g
)
+
H
2
O
(
g
)
, is:
Q.
For which reaction will
Δ
H
=
Δ
U
?
Assume each reaction is carried out in an open container.
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