Problem: Calculate the standard entropy change for the following reaction, 2SO2 (g) + O2 (g) → 2SO3 (g) given S° [SO2 (g)] = 248.2 J/K • mol. S° [O2 (g)] = 205. 1 J/K • mol, and S° [SO3 (g)] = 256.8 J/K • mol. (a) -196.5 J/K • mol-rxn (b) -94.0 J/K • mol-rxn (c) -187.9 J/K • mol-rxn (d) +187.9 J/K • mol-rxn (e) +196.5 J/K • mol-rxn

FREE Expert Solution
94% (258 ratings)
FREE Expert Solution
94% (258 ratings)
View Complete Written Solution
Problem Details

Calculate the standard entropy change for the following reaction, 

2SO2 (g) + O2 (g) → 2SO3 (g) 

given S° [SO2 (g)] = 248.2 J/K • mol. S° [O2 (g)] = 205. 1 J/K • mol, and S° [SO3 (g)] = 256.8 J/K • mol. 

(a) -196.5 J/K • mol-rxn 

(b) -94.0 J/K • mol-rxn 

(c) -187.9 J/K • mol-rxn 

(d) +187.9 J/K • mol-rxn 

(e) +196.5 J/K • mol-rxn


Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Entropy concept. You can view video lessons to learn Entropy. Or if you need more Entropy practice, you can also practice Entropy practice problems.

How long does this problem take to solve?

Our expert Chemistry tutor, Leo took 3 minutes undefined to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Hernandez's class at UCF.