Calculate the pressure of `CO_2` gas at 700 K in the heterogeneous equilibrium reaction.
`CaCO_3 (s) hArr CaO(s) +CO_2(g)`
if `DeltaG^@` for this reactions is 130.2 kJ/mol.

Explanation

To calculate the pressure of \( CO_2 \) gas at 700 K for the given heterogeneous equilibrium reaction:

\[ CaCO_3 (s) \rightleftharpoons CaO (s) + CO_2 (g) \]

with \( \Delta G^\circ = 130.2 \, \text{kJ/mol} \), we will follow these steps:

### Step 1: Convert \( \Delta G^\circ \) to Joules
Since \( \Delta G^\circ \) is given in kJ, we need to convert it to Joules for consistency with the gas constant \( R \).
...