Knowing 1.80E5 Pa s for air at 20C from Table 1-4, estimate its viscosity at 500C

Knowing μ ≈ 1.80E−5 Pa • s for air at 20°C from Table 1-4, estimate its viscosity at 500°C by
(a) The Power-law,
(b) The Sutherland law, and
(c) The Law of Corresponding States, Fig. 1.5. Compare with the accepted value μ (500°C) ≈ 3.58E−5 Pa • s.