Two Monoatomic Gases,helium and Neon,are Mixed in the Ratio of 2

question 10

Multiple Choice

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 $\times$ 10^-21 J,calculate the temperature T.

• A)304 K
• B)456 K
• C)31 K
• D)31 \(\circ\) C
• E)101 K