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Byju's Answer
Standard XII
Chemistry
Theories of Catalysis
The △ S for t...
Question
The △ S for the reaction: 2H2 +O2 =2H2O at 300k when SH2=126.6, SO2=201.20, SH2O=68.0JKmol respectively
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Q.
The
△
S
for the reaction
2
H
2
(
g
)
+
O
2
(
g
)
→
2
H
2
O
(
l
)
at
300
K
when
S
o
H
2
(
g
)
=
126.6
,
S
o
O
2
(
g
)
=
201.20
,
S
H
2
O
(
l
)
=
68.0
J
K
−
1
m
o
l
−
1
respectively is:
Q.
In the reaction,
2
H
2
S
+
S
O
2
→
3
S
+
2
H
2
O
Q.
Determine the change in oxidation number of sulphur in
H
2
S
and
S
O
2
respectively in the following reaction.
2
H
2
S
+
S
O
2
→
2
H
2
O
+
3
S
.
Q.
For the series of reactions given below :
2
H
2
S
O
4
830
o
C
−
−−−
→
2
S
O
x
+
2
H
2
O
+
O
2
I
2
+
S
O
2
+
2
H
2
O
120
o
C
−
−−
→
z
H
I
+
H
2
S
O
4
2
H
I
320
o
C
−
−−
→
y
I
2
+
H
2
Find the value of
x
,
y
and
z
.
Q.
In
H
2
−
O
2
fuel cell the reaction occuring at cathode is:
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