Sidney P. answered 05/25/20
Astronomy, Physics, Chemistry, and Math Tutor
From the ideal gas law PV = nRT, with temperature T and # of moles n being constant, then Pressure and Volume are inversely related. When volume decreases by factor of 3.0 from 1.5 to 0.5 L, then pressure must increase by factor of 3 to 2.67 atm.