Which of the following samples will have the greatest average speed at 355 K? A)Ne B)C₂H₄ C)Cl₂ D)CH₄ E)All of these samples will have the same average speed at the same temperature.

Question

Quizplus · Accepted Answer

The average speed of gas molecules is inversely proportional to the square root of their molar mass. CH₄ has the lowest molar mass among the given options, so it will have the greatest average speed at 355 K.

Which of the Following Samples Will Have the Greatest Average