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Byju's Answer
Standard IX
Chemistry
Sulphur Trioxide
Under normal ...
Question
Under normal conditions, for the reaction
S
O
3
(
g
)
+
H
2
O
(
l
)
→
H
2
S
O
4
(
a
q
)
the nature of
Δ
H is:
A
Negative
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B
Positive
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C
Zero
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D
Can’t be determined as data is insufficient
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Solution
The correct option is
A
Negative
Under normal conditions, Sulphur trioxide reacts violently with water:
S
O
3
(
g
)
+
H
2
O
(
l
)
→
H
2
S
O
4
(
a
q
)
Δ
H
<
0
Suggest Corrections
0
Similar questions
Q.
Given
S
(
s
)
+
O
2
(
g
)
→
S
O
2
(
g
)
;
Δ
H
=
−
298.2
k
J
S
O
2
(
g
)
+
1
2
O
2
(
g
)
→
S
O
3
(
g
)
;
Δ
H
=
−
98.7
k
J
S
O
3
(
g
)
+
H
2
O
(
l
)
→
H
2
S
O
4
(
l
)
;
Δ
H
=
−
130.2
k
J
H
2
(
g
)
+
1
2
O
2
(
g
)
→
H
2
O
(
l
)
;
Δ
H
=
−
287.3
k
J
The enthalpy of formation of
H
2
S
O
4
will be :
Q.
For the reaction
H
2
O
(
s
)
⇋
H
2
O
(
l
)
at 0°C and normal pressure
Q.
H
2
S
O
4
(
a
q
)
+
2
K
O
H
(
a
q
)
→
K
2
S
O
4
(
a
q
)
+
2
H
2
O
(
f
)
;
Δ
H
for the above reaction is:
Q.
S
(
s
)
+
O
2
(
g
)
→
S
O
2
(
g
)
;
Δ
H
∘
=
−
297
k
J
2
S
O
2
(
g
)
+
O
2
(
g
)
→
2
S
O
3
(
g
)
;
Δ
H
∘
=
−
198
k
J
From the above data which has given, calculate the heat of reaction for the formation of
S
O
3
?
S
(
s
)
+
3
2
O
2
(
g
)
→
S
O
3
(
g
)
Q.
Identify the products of the given reaction.
Na
2
CO
3
(aq)
+
H
2
SO
4
(aq)
→
?
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