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Predict the sign of Δ˚S for the following changes: H2O(g) → H2O(l) Zn(s) 2 HCl(aq) → H2(g) + Zn2+(aq) + 2 Cl-(aq) MgO(s) → Mg2+ (aq) + O2-(aq) 2N2(g) + O2(g) → 2 N2O(g) 1. Positive 2. Negative

Predict the sign of Δ˚S for the following changes: H2O(g) → H2O(l) Zn(s) 2 HCl(aq) → H2(g) + Zn2+(aq) + 2 Cl-(aq) MgO(s) → Mg2+ (aq) + O2-(aq) 2N2(g) + O2(g) → 2 N2O(g) 1. Positive 2. Negative

Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter16: Spontaneity Of Reaction
Section: Chapter Questions
Problem 9QAP: Predict the sign of ΔS for the following: (a) a lake freezing (b) ice cream thawing (c) a candle...
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Predict the sign of Δ˚S for the following changes:

 

 H2O(g) → H2O(l)

 
 

Zn(s) 2 HCl(aq) → H2(g) + Zn2+(aq) + 2 Cl-(aq)
 

MgO(s) → Mg2+ (aq) + O2-(aq)

 
 

2N2(g) + O2(g) → 2 N2O(g)

 

  
1.

Positive
2.

Negative
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