Pressure is determined as force per unit area of the surface. The *.I unit pressure, Pascal is expressed as shown below:
1 Pa = 1 Nm-2
If mass of air at sea level is 1034 g cm-2, calculate the pressure in Pascal
Mass, m = 1034 g = 1.034 kg
Force = m x a = 1.036 x 9.8
= 10.13 N
Area = 1 cm2 = 1/(0.01)2 m2
= 0.001 Nm-2 = 0.001 Pascal
