One of the widely used correlations to describe the variation of the viscosity of gases is...

One of the widely used correlations to describe the variation of the viscosity of gases is the power-law equation given by μ/μ₀ = (T/T₀)ⁿ, where μ₀ and T₀ are the reference viscosity and temperature, respectively. Using the power and Sutherland laws, examine the variation of the air viscosity for the temperature range 100°C (373 K) to 1000°C (1273 K). Plot your results to compare with values listed in Table A-22. Take the reference temperature as 0°C and n = 0.666 for the atmospheric air.

Table A-22:

Note: For ideal gases, the properties c_p, k, μ, and Pr are independent of pressure. The properties ρ, v, and α at a pressure P (in atm) other than 1 atm are determined by multiplying the values of P at the given temperature by ρ and by dividing v and α by P.

Source: Data generated from the EES software developed by S. A. Klein and F. L. Alvarado. Original sources: Keenan, Chao, Keyes, Gas Tables, Wiley, 1984; Thermophysical Properties of Matter. Vol. 3: Thermal Conductivity, Y. S. Touloukian, P. E. Liley, S. C. Saxena, Vol. 11: Viscosity, Y. S. Touloukian, S. C. Saxena, and P. Hestermans, IFI/Plenum, NY, 1970, ISBN 0-306067020-8.