Chemistry Practice Problems Entropy Practice Problems Solution: Predict the sign of the entropy change, ΔS°, for t...

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Solution: Predict the sign of the entropy change, ΔS°, for the following reaction.Pb2+ (aq) + 2Cl− (aq) → PbCl2(s)a) Negativeb) Positive                                                   

Problem

Predict the sign of the entropy change, ΔS°, for the following reaction.

Pb2+ (aq) + 2Cl (aq) → PbCl2(s)

a) Negative

b) Positive                                                   

Solution

Entropy (ΔS)

• disorder or chaos

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