A container with a porous wall is filled with He, H2, N2, and CO2. Which one of these gases will diffuse out of the container in the least time
A container with a porous wall is filled with He, H2, N2, and CO2. Which one of these gases will diffuse out of the container in the least time
Explanation
According to Graham’s Law of Diffusion, gases with lower molar mass diffuse faster.
Molar masses:
- H₂ = 2 g/mol (lowest)
- He = 4 g/mol
- N₂ = 28 g/mol
- CO₂ = 44 g/mol
Since H₂ has the smallest molar mass, it will diffuse the fastest and thus escape in the least time.