How do I predict whether the entropy change is positive ornegative for each of t

Question

How do I predict whether the entropy change is positive ornegative for each of these reactions? Could someone provide thesteps for determining the answer to each of these? a) Zn(s) + 2HCl(aq) --> ZnCl2(aq) + H2(g) b) O(g) + O(g) --> O2(g) c) NH4NO3(s) --> N2O(g) + 2H2O(g) How do I predict whether the entropy change is positive ornegative for each of these reactions? Could someone provide thesteps for determining the answer to each of these? a) Zn(s) + 2HCl(aq) --> ZnCl2(aq) + H2(g) b) O(g) + O(g) --> O2(g) c) NH4NO3(s) --> N2O(g) + 2H2O(g)

Explanation / Answer

We Know that :

   The Entropy is the measure of Randomness ordisorder of the System greater number of the moles greater will bethe

Entropy.

   For the above Reactions :

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