Which of the following gaseous systems (assuming ideal behavior and equal moles) possesses the maxim — Thermodynamics and Thermochemistry Chemistry Question

💡 Solution & Explanation

The internal energy of an ideal gas depends on its degrees of freedom ($U = \frac{f}{2}nRT$). Ozone ($O_3$) is a non-linear triatomic gas with higher degrees of freedom (translational + rotational + vibrational) compared to diatomic oxygen ($O_2$) and monoatomic helium ($He$). Thus, ozone has the maximum internal energy.