Calculate the entropy change for a reaction:
`XrarrY`
Given that `DeltaH^(Theta) = 28.40 kJ mol^(-1)` and equilibrium constant is `1.8 xx 10^(-7) at 298K`.

Explanation

To calculate the entropy change (ΔS°) for the reaction \( X \rightleftharpoons Y \), we can follow these steps:

### Step 1: Use the relationship between ΔG°, ΔH°, and ΔS°
We know from thermodynamics that:
\[ \Delta G^\circ = \Delta H^\circ - T \Delta S^\circ \]
Where:
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