Question: Which reaction produces a decrease in the entropy of the system? H 2 O ( I ) H 2 O ( g ) C O

Which reaction produces a decrease in the entropy of the system?
H2O(I)H2O(g)
CO2(s)CO2(g)
CaCO3(s)CaO(s)+CO2(g)
2C(s)+O2(g)2CO(g)
2H2(g)+O2(g)2H2O(I)
Which reaction produces a decrease in the entropy

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