Select all of the following reactions that would be expected to provide a positive change in entropy, AS > 0. I. 2K(s) + H₂O(1) 2KOH(aq) + H2(9) II. 2 K (s) + F2 (g) →→2 KF (s) III. 2 Al(s) + 3 Br2 (1)→ Al2Br6(s) O I and II only O III only O II only O I only I and II and III

Select all of the following reactions that would be expected to provide a positive change in entropy, AS > 0. I. 2K(s) + H₂O(1) 2KOH(aq) + H2(9) II. 2 K (s) + F2 (g) →→2 KF (s) III. 2 Al(s) + 3 Br2 (1)→ Al2Br6(s) O I and II only O III only O II only O I only I and II and III

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter10: Entropy And The Second Law Of Thermodynamics

Section: Chapter Questions

Problem 10.90PAE: A key component in many chemical engineering designs is the separation of mixtures of chemicals. (a)...

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Question

1
Select all of the following reactions that would be expected to provide a positive change in entropy, AS > 0.
I.
2K(s) + H₂O(1)
->
2KOH(aq) + H2(9)
II.
2 K (s) + F2 (g) → 2 KF (s)
III.
2 Al(s) + 3 Br2 (1)→ Al2Br6(s)
O I and II only
O III only
O II only
O I only
O I and II and III
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