Two samples of Hydrogen, H2, and Oxygen, Oz, are at the same temperature.

Question

The speed of hydrogen molecules is the same as the speed of oxygen
molecules.
O True
O False

Answer 1

False

The speed of gas molecules is determined by their temperature, so if two samples of different gases are at the same temperature, their molecules will not have the same speed. The speed of gas molecules also depends on their mass, so hydrogen molecules, being lighter than oxygen molecules, would actually have a higher speed at the same temperature.