Two monoatomic gases, helium and neon, are mixed in the ratio of 2 to 1 and are in thermal equilibrium at temperature T the molar mass of helium = 4.0 g/mol and the molar mass of neon = 20.2 g/mol). If the average kinetic energy of each helium atom is 6.3 × 10⁻²¹ J, calculate the temperature T.

Question

Quizplus · Accepted Answer

The average kinetic energy of a monoatomic gas is given by (3/2)kT, where k is the Boltzmann constant (1.38 × 10^-23 J/K). Solving for T using the given kinetic energy, T = (2/3) * (6.3 × 10^-21 J) / (1.38 × 10^-23 J/K) = 304 K.

Two Monoatomic Gases, Helium and Neon, Are Mixed in the Ratio