Represent the potential energy/enthalpy change in the following processes graphically.
(a) Throwing a stone from the ground to roof.
(b) `(1)/(2) H_(2) (g) + (1)/(2) Cl_(2) (g) hArr HCl (g) Delta_(r) H^(Θ) = - 92.32 kJ mol^(-1)`
In which of the processes potential energy/enthalpy change is contributing factor to the spontaneity ?

Explanation

To solve the given question, we will represent the potential energy/enthalpy change graphically for both processes and analyze which of them contributes to spontaneity.

### Step-by-Step Solution:

**(a) Throwing a stone from the ground to the roof:**

1. **Identify the Initial and Final States:**
- Initial state: The stone is at the ground level (low potential energy).
...