The standard potential of the following cell is 0.23 V at `15^@C and 0.21V` at `35^@C`
`(Pt) H_2(g) |HCl(aq)|AgCl(s)|Ag(s)`
Calculate `Delta H^@ and Delta S^@` for the cell reaction by assuming that these quantities remain unchanged in the range `15^@` to `35^@C`

Explanation

To solve the problem, we need to calculate the standard enthalpy change (ΔH°) and the standard entropy change (ΔS°) for the cell reaction given the standard potentials at two different temperatures.

### Step-by-Step Solution:

1. **Identify the Cell Reaction**:
The cell reaction can be written as:
\[
\text{H}_2(g) + 2 \text{Ag}^+(aq) \rightarrow 2 \text{H}^+(aq) + 2 \text{Ag}(s)
...