A molecule has two allowed energy levels, the ground state andan excited state at 0.43 eV. The degeneracy of the ground state isg0=2 and of the excited state, g1=3. At1400K, calculate the fraction of molecules in the groundstate.

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The molar mass of a substance is defined as the mass of 1 mol of that substance, expressed in grams per mole, and is equal to the mass of 6.022 × 10 23 atoms, molecules, or formula units of that substance.

We first assume that this gas is an ideal gas where it follows the ideal gas equation. the said equation is expressed as: pv = nrt. from this equation, we can predict the changes in the pressure, volume and temperature. if the volume and the temperature of this gas is doubled, then the pressure still stays the same.