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Standard XII
Chemistry
Gibbs Free Energy & Spontaneity
A negative va...
Question
A negative value for this term indicates that a reaction process will occur spontaneously.
A
Gibbs Free Energy
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B
Entropy
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C
Enthalpy
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D
Calorimetry
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Solution
The correct option is
C
Gibbs Free Energy
Δ
G
=
negative for a spontaneous reaction.
Δ
G
=
positive for a non-spontaneous reaction.
Δ
G
=
0
for process/system at equilibrium.
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Similar questions
Q.
A negative value for this term indicates that a reaction was exothermic.
Q.
I
. An endothermic reaction process cannot occur spontaneously.
I
I
. The enthalpy change for an endothermic process is negative.
Q.
For a chemical reaction,
Δ
H
and
Δ
S
are negative. State, giving reason, under what conditions this reaction is expected to occur spontaneously.
Q.
Statement 1: A synthesis reaction that is non-spontaneous and has a negative value for its heat of reaction will not occur until some heat is added.
Statement 2: Non-spontaneous exothermic reactions need enough activation energy to get them started.
Q.
Statement I: A reaction with a positive enthalpy and a negative entropy will be spontaneous
BECAUSE
Statement II: The Gibbs free energy for a spontaneous reaction is negative
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