8. Consider a generic reaction AB (g) → A (g) +B (g) for which ΔH° is -150 kJ/mol and ΔS° is +150 J/K ∙ mol. This reaction is ________ Group of answer choices A, spontaneous at all temperatures B, nonspontaneous at all temperatures C, spontaneous only at high temperatures D, spontaneous only at low temperatures
8. Consider a generic reaction AB (g) → A (g) +B (g) for which ΔH° is -150 kJ/mol and ΔS° is +150 J/K ∙ mol. This reaction is ________ Group of answer choices A, spontaneous at all temperatures B, nonspontaneous at all temperatures C, spontaneous only at high temperatures D, spontaneous only at low temperatures
Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter16: Spontaneity, Entropy, And Free Energy
Section: Chapter Questions
Problem 61E: Consider the reaction Fe2O3(s)+3H2(g)2Fe(s)+3H2O(g) a. Use Gf values in Appendix 4 to calculate G...
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8. Consider a generic reaction AB (g) → A (g) +B (g) for which
ΔH° is -150 kJ/mol and ΔS° is +150 J/K ∙ mol. This reaction is ________
Group of answer choices
A, spontaneous at all temperatures
B, nonspontaneous at all temperatures
C, spontaneous only at high temperatures
D, spontaneous only at low temperatures
9.Place the following compounds in order of decreasing standard molar entropy
Group of answer choices
A, No answer text provided.
B, NaCl(aq)>Na2SO4(aq)>Na3PO4(aq)
C, Na3PO4(aq)>Na2SO4(aq)>NaCl(aq)
D, Na2SO4(aq)>NaCl(aq)>Na3PO4(aq)
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