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Objective: To use knowledge of the ∆H and ∆S values for a reaction
in order to predict whether it is spontaneous or not.
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Spontaneity and Driving Forces
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Two Truths and a Lie, Matching Pairs, and Reaction Analysis.
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Two Truths and a Lie
3 Questions
Given three statements about spontaneity, identify the false statement.
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Matching Pairs
4 Pairs
Match 4 pairs of terms associated with ∆H, ∆S, and spontaneity.
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Wave Anatomy
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Reaction Analysis
6 Questions
Given the ∆H and ∆S value for a reaction, identify the conditions for
which it is spontaneous.
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Two Truths and a Lie
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Not spontaneous at any temperature.
Consider this reaction and its ∆H and ∆S values: EndFragment
Activity:
∆H =
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Spontaneous only in high temperature range.
Reaction Analysis
∆S =
Which phrase describes the spontaneity of this reaction?
Spontaneous at all temperatures.
Spontaneous only in low temperature range.