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Byju's Answer
Standard XII
Physics
Antiderivative
N(g) + O+(g...
Question
N(g) + O+(g) ---> N+(g) + O(g) is the above process spon†an eous?
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Q.
Assign true (T) or false (F) for the following statements and select the correct option for your answer.
I) I.P. of
O
(
g
)
is less than I.P. of
O
−
(
g
)
II) I.P. of
N
e
(
g
)
is greater than I.P. of
N
e
+
(
g
)
III) E.A. of
O
+
(
g
)
is greater than E.A. of
O
(
g
)
IV) E.A. of
N
(
g
)
is greater than I.P. of
N
+
(
g
)
Q.
O
(
g
)
+
e
−
⟶
O
−
(
g
)
,
△
H
e
g
=
−
v
e
Q.
The formation of the oxide ion
O
2
−
(
g
)
requires first an exothermic and then an endothermic step as shown below.
O
(
g
)
+
e
−
=
O
−
(
g
)
;
Δ
H
0
=
−
142
k
J
m
o
1
−
1
O
(
g
)
−
+
e
−
=
O
2
−
(
g
)
;
Δ
H
0
=
844
k
J
m
o
1
−
1
This is because:
Q.
The formation of the oxide ion
O
2
−
(
g
)
requires first an exothermic and then an endothermic step as shown below
O
(
g
)
+
e
−
→
O
−
(
g
)
;
△
H
o
=
−
142
k
J
m
o
l
−
1
O
(
g
)
+
e
−
→
O
2
−
(
g
)
;
△
H
o
=
−
844
k
J
m
o
l
−
1
The correct statement is:
Q.
The formation of the oxide ion, O
2
−
(
g
)
, from oxygen atom requires first an exothermic and then an endothermic step as shown below:
O
(
g
)
+
e
−
→
O
−
(
g
)
;
Δ
H
∘
=
−
141
k
J
m
o
l
−
1
O
−
(
g
)
+
e
−
→
O
2
−
(
g
)
;
Δ
H
∘
=
+
780
k
J
m
o
l
−
1
Thus, process of formation of
O
2
−
in gas phase is unfavourable even though
O
2
−
is isoelectronic with neon. It is due to the fact that:
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