Predict the sign of delta S° and then calculate delta S° for each of the following reactions
a. 2H2S(g) + SO2(g) –> 3S(rhombic)(s) + 2H2O(g)
b. 2SO3(g) –> 2SO2(g) +O2(g)
c. Fe2O3(s) + 3H2(g) –> 2Fe(s) + 3H2O(g)
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b. Here, you're going from 2 moles of gas to 3, so ΔS would probably be positive.
c. Here the number of moles of gas is the same on both sides, but the total number of particles is increasing in the reaction so I would guess that ΔS would be slightly positive.
If this is not helpful then just tell me. I will try my best to explain it in another way. Also, are there any answer choices to go along with this question?
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