Which one of the following gases would have the highest average molecular speed at 25 °C? A) SF₆ B) CO₂ C) O₂ D) N₂ E) CH₄

Question

Quizplus · Accepted Answer

The average molecular speed of a gas is directly proportional to the square root of its temperature and inversely proportional to the square root of its molar mass. Among the given options, CH4 has the lowest molar mass, hence it will have the highest average molecular speed at 25 °C.

Which One of the Following Gases Would Have the Highest