Arrange the Following Gases in Order of Increasing Average Molecular

Multiple Choice

Arrange the following gases in order of increasing average molecular speed at 25 °C. He,O₂,CO₂,N₂

A) He < N₂ < O₂ < CO₂
B) He < O₂ < N₂ < CO₂
C) CO₂ < O₂ < N₂ < He
D) CO₂ < N₂ < O₂ < He
E) CO₂ < He < N₂ < O₂