For the following reactions, indicate whether the entropy of the system increases, decreases, or remains nearly the same. ( Circle) a) Al3* (aq) + 3 OH (aq) → Al(OH)3 (s) increase decrease remains nearly the same b) CaCO3(s) → CaO(s) + CO2(g) increase decrease remains nearly the same c) Mg(s) + Cu2+(aq) → Mg²*(aq) + Cu(s) increase decrease remains nearly the same

Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter5: Principles Of Chemical Reactivity: Energy And Chemical Reactions
Section5.4: The First Law Of Thermodynamics
Problem 1RC: Which of the following processes will lead to a decrease in the internal energy of a system? (1)...
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For the following reactions, indicate whether the entropy of the system increases, decreases, or
remains nearly the same. ( Circle)
a) Al3* (aq) + 3 OH" (aq) → Al(OH)3 (s)
increase
decrease
remains nearly the same
b) CaCO3(s) → CaO(s) + CO2(g)
increase
decrease
remains nearly the same
c) Mg(s) + Cu2+(aq) → Mg²*(aq) + Cu(s)
increase
decrease
remains nearly the same
Rank the compounds in each of the following groups in order of increasing standard molar entropy.
a) CHa(g), CF4(g), CCI1(g)
b) CH20(g), CH3CHO(g), CH3CH2CHO (g).
c) HF(g), H20(g), NH3(g).
Transcribed Image Text:For the following reactions, indicate whether the entropy of the system increases, decreases, or remains nearly the same. ( Circle) a) Al3* (aq) + 3 OH" (aq) → Al(OH)3 (s) increase decrease remains nearly the same b) CaCO3(s) → CaO(s) + CO2(g) increase decrease remains nearly the same c) Mg(s) + Cu2+(aq) → Mg²*(aq) + Cu(s) increase decrease remains nearly the same Rank the compounds in each of the following groups in order of increasing standard molar entropy. a) CHa(g), CF4(g), CCI1(g) b) CH20(g), CH3CHO(g), CH3CH2CHO (g). c) HF(g), H20(g), NH3(g).
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