Question 1
Standard molar entropies,
S°, in J/Kmol, are given below each reactant and product in the reaction shown below. The standard entropy of reaction, Δ
S°, for this reaction is ________ J/K.
2 SO
2(
g)+ O
2(
g) → 2 SO
3(
g)
Question 2
The most commonly used white pigment is titanium white, which is titanium(IV) oxide, TiO
2. Titanium white can be formed from TiCl
4 as shown in the reaction below.
TiCl4(l) + 2 H2O(l) → TiO2(s) + 4 HCl(g)
If Δ
H° = 61.9 kJ/mol and Δ
S° = 405.4 J/K, what are Δ
Ssurr and Δ
Stotal for this reaction at 25°C?