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Solution: The rusting of iron is spontaneous and is accompanied by a decrease in the entropy of the system (the iron and oxygen).What can we conclude about the entropy change of the surroundings?

Problem

The rusting of iron is spontaneous and is accompanied by a decrease in the entropy of the system (the iron and oxygen).

What can we conclude about the entropy change of the surroundings?

Solution

We are asked what we can conclude about the entropy change of surroundings accompanying the rusting of iron which is spontaneous and is accompanied by a decrease of entropy of the system (the iron and oxygen).

 4Fe(s) + 3O2(g) → 2Fe2O3(s)

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