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Standard X
Chemistry
Combustion of Alkynes
the value of ...
Question
the value of △ H and △ S for the reaction C_{(graphite) }+CO2 (g) →2CO2(g) are 170KJ and 170 JK^{-1} respectively this reaction will be spon†an eous at which temperature
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Q.
The value of
△
H and
△
S for the reaction,
C
(
g
r
a
p
h
i
t
e
)
+
C
O
2
(
g
)
→
2
C
O
(
g
)
are 170kJ and
170
J
K
−
1
, respectively. This reaction will be spontaneous at:
Q.
The values of
Δ
H
and
Δ
S
for the reaction, C(graphite) +
C
O
2
(
g
)
→
2
C
O
(
g
)
are 170 kJ and
170
J
K
−
1
respectively. This reaction will be spontaneous at:
Q.
The value of
Δ
H
and
Δ
S
for the reaction
A
g
2
O
(
s
)
→
2
A
g
(
s
)
+
1
2
O
2
(
g
)
are
30.58
k
J
and
66.11
J
K
−
1
respectively, and these values do not change much with temperature. The temperature at which the given reaction at
1
atmospheric pressure will be in equilibrium is:
Q.
△
H
and
△
S
for the equilibrium reaction,
H
2
O
(
l
)
⇌
H
2
O
(
g
)
at 1 atmospheric pressure are
40.63
k
J
m
o
l
−
1
and
108.8
J
K
−
1
m
o
l
−
1
respectively. Calculate the temperature at which the reaction occur.
Also, predict the sign of free energy for this transformation above this temperature.
Q.
Δ
H
and
Δ
S
for the reaction,
A
g
2
O
(
s
)
→
2
A
g
(
s
)
+
1
2
O
2
(
g
)
, are
30.56
k
J
m
o
l
−
1
and
66.00
J
K
−
1
m
o
l
−
1
respectively. The temperature at which the free energy change for the reaction will be zero is :
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