Answer: The new volume of the container is 13.8 L
Step-by-step explanation:
To calculate the new volume of the system, we use the equation given by Avogadro's Law. This law states that volume of the gas is directly proportional to the number of moles of the gas at constant pressure.
Mathematically,

where,
are the initial volume and moles of the gas.
are the final volume and moles of the gas.
We are given:

Putting values in above equation, we get:

Thus the new volume of the container is 13.8 L