Answer:
4.08 atm was the original pressure
Explanation:
When the temperature and the number of moles keeps on constant in 2 situations with a gas, we can apply this relation:
P₁ . V₁ = P₂ . V₂
It is an undirectly proportion, When the volume decrease, the pressure increase so if the pressue decrease, the volume will be increased.
P₁ . 50L = 3 atm . 68L
As the volume was increased, the initial pressure must be higher than the final pressure.
P₁ = (3 atm . 68L) / 50L = 4.08 atm
