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Byju's Answer
Standard XII
Chemistry
Enthalpy of Solution
The heat of s...
Question
The heat of solution of anhydrous
C
u
S
O
4
is
−
15.9
k
c
a
l
and that of
C
u
S
O
4
.5
H
2
O
is
2.8
k
c
a
l
. Calculate the heat of hydration of
C
u
S
O
4
.
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Solution
1)
C
u
S
O
4
(
s
)
→
C
u
S
O
4
(
a
q
)
△
H
f
=
−
15.9
K
c
a
l
(given)
2)
C
u
S
O
4
.5
H
2
O
(
s
)
→
C
u
S
O
4
(
a
q
)
+
5
H
2
O
△
H
2
=
+
2.8
k
c
a
l
(given)
To find hydration enthalpy of
C
u
S
O
4
3)
C
u
S
O
4
(
s
)
+
5
H
2
O
△
H
a
t
m
−
−−−−
→
C
u
S
O
4
.5
H
2
O
(
s
)
Reversing equation (2)
4)
C
u
S
O
4
(
a
q
)
+
5
H
2
O
△
H
h
y
d
r
a
t
i
o
n
−
−−−−−−
→
C
u
S
O
4
.5
H
2
O
(
s
)
△
H
4
=
−
2.8
k
c
a
l
Adding (4) + (1)
C
u
S
O
4
(
s
)
+
5
H
2
O
△
H
h
y
d
r
a
t
i
o
n
−
−−−−−−
→
C
u
S
O
4
.5
H
2
O
(
s
)
△
H
h
y
d
r
a
t
i
o
n
=
△
H
1
+
△
H
4
=
−
18.7
k
c
a
l
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0
Similar questions
Q.
The heat of solution of anhydrous
C
u
S
O
4
and
C
u
S
O
4
.
5
H
2
O
are - 15.89 and 2.80
K
c
a
l
m
o
l
−
1
respectively. The heat of hydration of anhydrous
C
u
S
O
4
is:
Q.
The heat of solution of anhydrous
C
u
S
O
4
and
C
u
S
O
4
.5
H
2
O
are - 15.89 and 2.80
K
c
a
l
m
o
l
−
1
respective. What will be heat of hydration of anhydrous
C
u
S
O
4
?
Q.
Heat of solution of anhydrous
C
u
S
O
4
is -15.9 kcal and heat of hydration of anhydrous
C
u
S
O
4
is -18.9 kcal. The heat of solution of
C
u
S
O
4
.5
H
2
O
is ..........
Q.
The enthalpy of solution of anhydrous
C
u
S
O
4
is
−
16
kcal and that of
C
u
S
O
4
.5
H
2
O
is 3 kcal.. Calculate the enthalpy of hydration of
C
u
S
O
4
.
Q.
The enthalpy of solution of anhydrous
C
u
S
O
4
is
−
15.9 kCal and that of
C
u
S
O
4
.5
H
2
O
is 2.8 kCal.
Calculate the enthalpy of hydration of
C
u
S
O
4
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