According to kinetic-molecular theory,in which of the following gases will the root-mean-square speed of the molecules be the highest at 200 °C? A)HCl B)Cl₂ C)H₂O D)SF₆ E)None. The molecules of all gases have the same root-mean-square speed at any given temperature.

Question

Quizplus · Accepted Answer

The root-mean-square speed of gas molecules is inversely proportional to the square root of the molar mass. H2O has the lowest molar mass among the given options, resulting in the highest root-mean-square speed at the same temperature.

According to Kinetic-Molecular Theory,in Which of the Following Gases Will