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Standard XII
Chemistry
Mechanism of Adsorption
Spontaneous a...
Question
Spontaneous adsorption of
H
2
on the glass surface also involves the change
H
2
→
2
H
during adsorption.
Which of the following statements are correct for adsorption of
H
2
on the glass surface?
A
Δ
H
=
+
v
e
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B
Δ
S
=
+
v
e
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C
T
Δ
S
>
Δ
H
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D
Δ
G
=
−
v
e
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Solution
The correct option is
D
Δ
G
=
−
v
e
Suggest Corrections
0
Similar questions
Q.
Which of the following is true for spontaneous adsorption of
H
2
gas without dissociation on the solid surface?
Q.
Assertion :For adsorption
Δ
G
,
Δ
S
and
Δ
H
all have negative values. Reason: Adsorption is a spontaneous process accompanied by decrease in randomness.
Q.
Assertion :For adsorption
Δ
G
,
Δ
H
,
Δ
S
all have negative values. Reason: Adsorption is a spontaneous exothermic process in which randomness decreases due to force of attraction between adsorbent and adsorbate.
Q.
Assertion :For adsorption,
Δ
G
,
Δ
H
and
Δ
S
all have negative values. Reason: Adsorption is a spontaneous exothermic process in which randomness decreases due to force of attraction between adsorbent and adsorbate.
Q.
Assertion :Adsorption is exothermic and spontaneous inspite of the fact that adsorption is accompained with decrease in entropy. Reason: The factor
T
Δ
S
is lesser than
Δ
H
.
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