Modern vacuum pumps can evacuate vessel down to a pressure 4

Last updated: 6/12/2023

Modern vacuum pumps can evacuate vessel down to a pressure 4 0 x 10 5 atm at room temperature 300 K Taking R 8 3 JK mole 1 atm 105 Pa and NAvogadro 6 10 mole the mean distance between molecules of gas in an evacuated vessel will be of the order of A B C D 0 2 m 0 2 nm 0 2 cm 0 2 mm MY