Viscosity of Gas: PPDS5

PPDS 5: For viscosity h of the gas at low pressures (p < 600 kPa)

h = a₀×T_r / {1 + a₁×(T_r - 1)× T_r^{^a₂}}^1/6; where T_r = T/T_c and T_c is the critical temperature.

Evaluation Results:

The example is for fitted thermal conductivities for the saturated liquid phase of pentane.