J.R. S. answered 07/27/21
Ph.D. in Biochemistry--University Professor--Chemistry Tutor
Combined Gas Law: P1V1/T1 = P2V2/T2
Plug in the values and solve for V2 (final volume)
(1.50 atm)(3.80 L) / 287.8K = (0.996 atm)(V2) / 292K (NOTE: temps are in Kelvin)
V2 = 5.81 L