What is the final pressure of helium and neon gas mixture in this case?
I wrongly selected incorrect answer as favourite answer. Another answer final pressure p=6.67 bar is the correct and favourite answer with 5 stars.
- Roger the MoleLv 72 months agoFavorite Answer
((10.0 mol x 5.00 bar) + (5.00 mol x 20.0 bar)) / (10.0 mol + 5.00 mol) = 10.0 bar
- 2 months ago
We can treat noble gasses as ideal gasses, which means we can use the formula pV=nRT, which is independent of the actual type of gas.
Let the first container have n₁ moles, pressure p₁, and volume V₁.
Let the second container have n₂, p₂, and V₂.
Let the temperature be T, and let the final pressure be p.
Then we have:
Since we do not know the volumes, we will eliminate them from the equations:
The final pressure should be p=6.67bar.