Which of the following reactions would have the greatest positive entropy change, ΔS = +? 2 Mg (s) + O2 (g) → 2 MgO (s) 2 NO (g) + Br2 (g) → 2 NOBr (g) Pb(NO3)2 (aq) + 2 NaI (aq) → PbI2 (s) + 2 NaNO3 (aq) 2 H2O2 (l) → 2 H2O (l) + O2 (g) 2 Na (s) + Cl2 (g) → 2 NaCl (s)

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Answered: Which of the following reactions would…

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 2RC: 2. In which of the following reactions is there a significant transfer of energy as work from the...

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Which of the following reactions would have the greatest positive entropy change, ΔS = +?

		2 Mg (s) + O₂ (g) → 2 MgO (s)
		2 NO (g) + Br₂ (g) → 2 NOBr (g)
		Pb(NO₃)₂ (aq) + 2 NaI (aq) → PbI₂ (s) + 2 NaNO₃ (aq)
		2 H₂O₂ (l) → 2 H₂O (l) + O₂ (g)
		2 Na (s) + Cl₂ (g) → 2 NaCl (s)

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