What is “entropy” ? Give a useful definition. In each of the following balanced chemical reactions, deduce whether the entropy change, ∆S, is positive or negative. Recall, ∆ always means final minus initial; so products minus reactants. CO2(s) → CO2(g) ∆S > 0, ∆S < 0 circle one NH3(g) + HCl(g) → NH4Cl(s) ∆S > 0, ∆S < 0 circle one C2H6O (g) + 3 O2(g) → 2 CO2(g) + 3 H2O(l) ∆S>0, ∆S<0 circle one
What is “entropy” ? Give a useful definition. In each of the following balanced chemical reactions, deduce whether the entropy change, ∆S, is positive or negative. Recall, ∆ always means final minus initial; so products minus reactants. CO2(s) → CO2(g) ∆S > 0, ∆S < 0 circle one NH3(g) + HCl(g) → NH4Cl(s) ∆S > 0, ∆S < 0 circle one C2H6O (g) + 3 O2(g) → 2 CO2(g) + 3 H2O(l) ∆S>0, ∆S<0 circle one
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter16: Thermodynamics: Directionality Of Chemical Reactions
Section: Chapter Questions
Problem 27QRT
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What is “entropy” ? Give a useful definition.
In each of the following balanced
CO2(s) → CO2(g) ∆S > 0, ∆S < 0 circle one
NH3(g) + HCl(g) → NH4Cl(s) ∆S > 0, ∆S < 0 circle one
C2H6O (g) + 3 O2(g) → 2 CO2(g) + 3 H2O(l) ∆S>0, ∆S<0 circle one
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