Question 1
Which of the following processes have a ΔS that is positive? Select all that apply
N2 (g) -> N2 (I)
N2(g)+3H2(g) -> 2NH3(g)
2 N2O5(g) -> 4NO2 (g) + O2 (g)
CO2 (s) -> CO2 (g)
Al (s) -> Al (I)

Calculate ΔS for the following reaction using the table below:
2 NO (g) + O2 (g) ↔ 2NO2 (g)
Species       ΔH°f (kJ/mol)          ΔG°f (kJ/mol)       S° (J/mol.K)
N2 (g)                0                            0                         191.6
NO (g)             91.3                         87.6                      210.8
NO2 (g)             33.2                         51.3                      240.1
N2O4 (g)          9.16                         99.8                      304.4
O2 (g)                0                            0                         205.2
O3 (g)             142.7                      163.2                      238.9
137.8 J/K
-146.6 J/K
-4.4 J/K
-175.8 J/K
24.8 J/K

Question 10
A certain reaction has a AG value of 13.8 kJ/mol. What is the value of the equilibrium constant (K) for this reaction when the temperature is 295 K?
7.11x10¯⁴
1.42x10⁵
3.60x10¯³
0.994
65.3

Question 12
What is the value of K at 305 K when ΔG° = +4.87 kJ/mol?

Question 1 Which of the following processes have a ΔS that is posi...