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Byju's Answer
Standard XII
Chemistry
Heat Capacity at Constant Pressure
Calculate the...
Question
Calculate the heat of the reaction of the following reaction.
C
O
2
(
g
)
+
H
2
(
g
)
+
H
2
O
(
g
)
Given that heat of formation of
C
O
(
g
)
,
H
2
O
(
g
)
and
C
O
2
(
g
)
are
−
110.4
,
−
242.4
and
−
393.0
k
J
mol
−
1
respectively.
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Solution
C
o
2
+
u
2
→
C
o
2
+
4
2
0
△
u
r
=
(
△
u
f
c
o
+
△
u
f
u
2
0
)
−
(
△
u
f
C
o
2
−
△
u
f
n
2
)
⇒
[
−
110.4
+
(
−
242.4
)
]
−
[
−
393
+
0
]
=
−
110.4
−
242.4
+
393
=
−
352.8
+
393
△
u
r
=
+
40.2
u
r
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