Arrange the following gases in order of increasing average molecular speed at 25 °C. Cl₂,O₂,F₂,N₂ A)Cl₂

Question

Arrange the following gases in order of increasing average molecular speed at 25 °C. Cl₂,O₂,F₂,N₂ A)Cl₂ < F₂ < O₂ < N₂ B)Cl₂ < O₂ < F₂ < N₂ C)N₂ < F₂ < Cl₂ < O₂ D)Cl₂ < F₂ < N₂ < O₂ E)F₂ < O₂ < N₂ < Cl₂

Quizplus · Accepted Answer

The average molecular speed of a gas at a given temperature is inversely proportional to the square root of its molar mass. Therefore, gases with lower molar masses will have higher average speeds. Among the given gases, Cl2 has the highest molar mass, followed by O2, F2, and N2 having the lowest. Thus, the order of increasing average molecular speed is Cl2 < F2 < O2 < N2.

Arrange the Following Gases in Order of Increasing Average Molecular