A gas of a substituted ethane is kept at $300\ \text{K}$. Its molecules interchange freely between two conformers. The less stable conformer lies $8.0\ \text{kJ/mol}$ above the other, and each exists in one form. What percentage of the number of molecules in the more stable conformer is the number in the less stable one? Take $R = 8.314\ \text{J/(mol K)}$.