Question

Answer the following questions related to H2O.

Answer 1

Answer:

1. 8.8kJ/mol

2. The process is not favorable.

3. The reason is in the answer.

4. Process 1.

Explanation:

1. ΔG° = ΔG° products - ΔG° reactants

ΔG° = -228.4kJ/mol - (-237.2kJ/mol) = 8.8kJ/mol

2. The process is not favorable because ΔG > 0

3. As the reaction is an equilibrium, a little amount of water will change from liquid to gas. This is the reason because of water has a measurable equilibrium vapor pressure.

4. Entropy is greater in process 1 because the structure of H2O(s) is more organized than H2O(l) (S of H2O(s) is lower than H2O(l)).

ΔS of H2O(s)⇄H2O(g) is greater than H2O(l)⇄H2O(g)