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JEEMAIN and NEET
>>
Physics
>>
Class11
>>
Thermodynamics
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Q)
Calculate the bond energy of
C
−
H
bond in methane from the following data:
C
(
s
)
+
2
H
2
(
g
)
→
C
H
4
(
g
)
;
Δ
H
=
−
74.8
k
J
H
2
(
g
)
→
2
H
(
g
)
;
Δ
H
=
435.4
k
J
C
(
s
)
→
C
(
g
)
;
Δ
H
=
718.4
k
J
(
A
)
1664
k
J
/
m
o
l
(
B
)
1514.4
k
J
/
m
o
l
(
C
)
416
k
J
/
m
o
l
(
D
)
378.6
k
J
/
m
o
l
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