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Standard XII
Chemistry
Heat of Formation
Question
The bond dissociation energy of gaseous
H
2
,
C
l
2
and
H
C
l
are 104, 58 and 103
k
c
a
l
.
m
o
l
−
1
respectively. The enthalpy of formation for HCl gas will be:
-22.0 kcal
-44.0 kcal
44.0 kcal
22.0 kcal
A
22.0 kcal
B
-22.0 kcal
C
44.0 kcal
D
-44.0 kcal
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Solution
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The balanced chemical reaction for the formation of HCl is as shown.
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Similar Questions
Q1
The bond dissociation energy of gaseous
H
2
,
C
l
2
and
H
C
l
are 104, 58 and 103
k
c
a
l
.
m
o
l
−
1
respectively. The enthalpy of formation for HCl gas will be:
View Solution
Q2
The bond dissociation energy of gaseous
H
2
,
C
l
2
and
H
C
l
are
104
,
58
and
103
kcal
m
o
l
−
1
respectively. The enthalpy formation for
H
C
l
gas will be:
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Q3
The bond dissociation energy of gaseous
H
2
,
C
l
2
and HCl are 104, 58 and 103
k
c
a
l
m
o
l
−
1
respectively. The enthalpy of formation for
H
C
l
gas will be
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Q4
The bond dissociation energy of gaseous
H
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,
C
l
2
and
H
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l
are 104 , 58 and 103 kcal / mole respectively . Calculate the enthalpy of formation of HCl gas.
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Q5
Bond dissociation energies of
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and
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−
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respectively, Calculate the enthalpy of formation of
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gas.
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