Problem: Which relationship or statement best describes ΔS° for the following reaction? 2 NH3(g) + 2 ClF3(g) → 6 HF(g) + N2(g) + Cl2(g)Select one: A. ΔS° ≈ 0B. ΔS° < 0C. ΔS° > 0D. ΔS°= ΔH°/TE. More information is needed to make a reasonable prediction

FREE Expert Solution

Recall that entropy is the degree of chaos or disorder of a system and that it depends on the following:

1. Phase: The gas phase has the highest entropy, followed by the liquid, and then the solid phase with the lowest entropy.

Gas > Liquid > Solid


2. Complexity: More elements in the compound leads to higher entropy.

Ex. NO3(g) [4 elements] has higher entropy than NO2(g) [3 elements].


3. Mass: The greater the mass, then the greater the entropy.

Ex. Xe(g) [greater mass] has higher entropy than He(g).



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Problem Details

Which relationship or statement best describes ΔS° for the following reaction? 

2 NH3(g) + 2 ClF3(g) → 6 HF(g) + N2(g) + Cl2(g)


Select one: 

A. ΔS° ≈ 0

B. ΔS° < 0

C. ΔS° > 0

D. ΔS°= ΔH°/T

E. More information is needed to make a reasonable prediction

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