What factors must you consider to determine the sign of ? S for the reaction 2N

Question

What factors must you consider to determine the sign of ?S for the reaction 2N2O(g) ? 2N2(g) + O2(g) if it occurs at constant temperature?

Select all that apply.

           the number of moles of products versus reactants in this case the number of moles increases the complexity of the molecules N2Ois less complex than either N2 or O2 the state of the products versus reactants the number of moles of products versus reactants in this case the number of moles decreases the complexity of the molecules N2Ois more complex than either N2 or O2 the total number of valence electrons N2Ohas more valence electrons than N2 and O2 the total number of valence electrons N2Ohas less valence electrons than N2 and O2

Explanation / Answer

a. Number of moles (increase means decrease entropy)

b. One molecule > two molecules (means increase entropy)

c. state of the product (gas has more entropy than liquid)

d.# of moles ( less moles means less entropy)

e. FALSE. N2O is LESS complex than N2 and O2, less molecules means lower entropy

f. No, Valence does not matter

g. No , valence doesnt matter

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