The final pressure will be 405.3 kilopascals.
According to the Boyle's Law, the pressure of the gas is inversely proportional to the volume of the gas as the temperature of the gas remains constant.
So,PV = Constant.
Here in this question, the volume of the container is halved.
Let the Pressure of the gas initially be P1 and final pressure be P2. Volume of gas initially be V
So, according to Boyle's Law,
P₁V₁ = P₂V₂PP.
So, [tex]2 \times V[/tex] = P₂[tex]\frac V2[/tex].
So, P2 = 4 atm.
1atm = 101.325 kilo pascals.
So, 4 atm = [tex]4\times101.325[/tex] kilopascals. = 405.3 kilopascals.