The change in entropy, ΔS∘rxn, is related to the the change in the number of moles of gas molecules, Δngas. Determine the change in the moles of gas for each of the reactions and decide if the entropy increases, decreases, or has little or no change. A. 2H2 (g) + O2 (g) ⟶ 2H2O (l) Δngas = mol The entropy, ΔS∘rxn, increases. decreases. has little or no change.

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Bruce Burke

Chemistry

20 July, 08:45

The change in entropy, ΔS∘rxn, is related to the the change in the number of moles of gas molecules, Δngas. Determine the change in the moles of gas for each of the reactions and decide if the entropy increases, decreases, or has little or no change. A. 2H2 (g) + O2 (g) ⟶ 2H2O (l) Δngas = mol The entropy, ΔS∘rxn, increases. decreases. has little or no change.

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Rachael Mayer · Answer 1

Entropy of a reaction ΔS∘rxn is the degree of disoderliness in a system. Gases generally have a higher degree of disorder compared to liquids. Hence for the reaction 2H2 (g) + O2 (g) ⟶ 2H2O (l), the entropy decreases sice the reactants are in the gaseous state and the products is in the liquid state of matter