I think you mean entropy
For entropy to be positive solids should be turned into liquid or gases.
In gases
Moles of gaseous products > Moles of gaseous reactants
For reaction
1st reaction - Entropy is positive (moles of products > Reactants)
2nd reaction - Entropy is positive (solid is turned into gas)
3rd reaction - Entropy is negative (moles of products < reactants)
4th reaction - Entropy is negative (moles of products < reactants)
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