Gases

Density (kg/m3)

Specific Heat Ratio

Kinematic Viscosity (10−6 m2/s)

Prandtl Number

Diffusion Coefficient in Air (cm2/s)

Air

0.95

1.40

15.7

0.71

0.204

SF6

4.85

1.09

2.47

0.90

0.097