At the same temperature,which of the following noble gases contains atoms with the fastest average velocity?

Question

Quizplus · Accepted Answer

The average velocity of gas particles is inversely proportional to the square root of their molar mass (as per the equation derived from kinetic molecular theory). Neon (Ne) has the lowest molar mass among the options, thus its atoms have the fastest average velocity at the same temperature.

At the Same Temperature,which of the Following Noble Gases Contains