Question

Place the following gases in order of increasing average molecular speed at 25°C.

a) Oxygen, Nitrogen, Hydrogen
b) Hydrogen, Nitrogen, Oxygen
c) Nitrogen, Oxygen, Hydrogen
d) Oxygen, Hydrogen, Nitrogen

Answer 1

The order of increasing average molecular speed for the given gases at 25°C is Hydrogen, Nitrogen, Oxygen.

Step-by-step explanation:

The average molecular speed of gases is determined by their molar mass and temperature. At a given temperature, lighter gases have higher average molecular speeds compared to heavier gases. Therefore, the order of increasing average molecular speed for the given gases at 25°C is:

1. Hydrogen
2. Nitrogen
3. Oxygen