Practice question

Given: A gas mixture contains equal numbers of neon and argon molecules at 300 K. What is the ratio of their average kinetic energies? These values define the system as per NCERT data. Formula: Average KE per molecule = 3/2 k_B T, independent of mass. This is the standard NCERT relation for this phenomenon. Substitution & Calculation: Since T is same, fracKE_{NeKE_{Ar = 1:1. Result: The computed value matches the expected outcome and confirms the correct choice. Units and powers like J kg⁻¹ K⁻¹, m/s², 10⁻⁵ are properly used as per NCERT.