Answer:
3.8 liters
Explanation:
According to Avogadro’s Law of gases
at constant temperature and pressure, the volume of all gases constitutes an equal number of molecules. In other words, the volume of any gas is directly proportional to the number of molecules of that gas.
∴ V ∝ n or (V₁/V₂) = (n₁/n₂)
V₁= 2.5 L
n₁= 0.3 mol
n₂= 0.3 mol + 0.15 mol = 0.45 mol
using cross multiplication
(2.5 L / V₂) = (0.3 mol / 0.45 mol)
V₂= 3.8 L
∴ The right choice is 3.8 liters
