1 A gas at a pressure of 225 torr exerts a force of _____________ kN on an area of 2.0m2 . (a) 15 (c) 60 (b) 50 (d) 70 2 Vacuum pressure at any point is the pressure (a) above atmospheric pressure (c)...

1 A gas at a pressure of 225 torr exerts a force of _____________ kN on an area of 2.0m2 .

(a) 15 (c) 60

(b) 50 (d) 70

2 Vacuum pressure at any point is the pressure

(a) above atmospheric pressure (c) equal to atmospheric pressure

(b) below atmospheric pressure (d) equal to absolute zero pressure