19. Chemical Thermodynamics
Entropy Calculations
19. Chemical Thermodynamics Entropy Calculations
59PRACTICE PROBLEM
Calculate ΔH°, ΔS°, and ΔG° at 25.0°C for the following reaction: 2 Al(s) + 6 HCl(g) → 2 AlCl3(s) + 3 H2(g). Use the values given below:
ΔH° (kJ/mol) S° (J/mol•K)
Al(s) 0 28.32
AlCl3(s) –705.6 109.3
HCl(g) –92.30 186.69
H2(g) 0 130.58
Calculate ΔH°, ΔS°, and ΔG° at 25.0°C for the following reaction: 2 Al(s) + 6 HCl(g) → 2 AlCl3(s) + 3 H2(g). Use the values given below:
ΔH° (kJ/mol) S° (J/mol•K)
Al(s) 0 28.32
AlCl3(s) –705.6 109.3
HCl(g) –92.30 186.69
H2(g) 0 130.58