Chemistry Practice Problems Entropy Practice Problems Solution: When does entropy increase and when does it decrea...

Solution: When does entropy increase and when does it decrease?

Problem

When does entropy increase and when does it decrease?

Solution

We’re asked to determine when does entropy (ΔS) increases and when does it decrease.

Recall that entropy is the degree of chaos or disorder of a system.


For a given process, entropy (ΔS) will either increase or decrease:


• ΔS > 0 or ΔS = (+); entropy is increased

• ΔS < 0 or ΔS = (); entropy is decreased


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