?Predict the sign of the entropy change of the system for each of the following reactions: (a) \(\mathrm{N}_{2}(g)+3 \mathrm{H}_{2}(g) \longri

Chapter 19, Problem 19.41

(choose chapter or problem)

Predict the sign of the entropy change of the system for each of the following reactions:

(a) \(\mathrm{N}_{2}(g)+3 \mathrm{H}_{2}(g) \longrightarrow 2 \mathrm{NH}_{3}(g)\)

(b) \(\mathrm{CaCO}_{3}(s) \longrightarrow \mathrm{CaO}(s)+\mathrm{CO}_{2}(g)\)

(c) \(3 \mathrm{C}_{2} \mathrm{H}_{2}(g) \longrightarrow \mathrm{C}_{6} \mathrm{H}_{6}(g)\)

(d) \(\mathrm{Al}_{2} \mathrm{O}_{3}(s)+3 \mathrm{H}_{2}(g) \longrightarrow 2 \mathrm{Al}(s)+3 \mathrm{H}_{2} \mathrm{O}(g)\)

Text Transcription:

N2(g) + 3 H2(g) \longrightarrow 2 NH3(g)

CaCO3(s) \longrightarrow CaO(s) + CO2(g)

3 C2H2(g) \longrightarrow C6H6(g)

Al2O3(s) + 3 H2(g) \longrightarrow 2 Al(s) + 3 H2O(g)