The density of air at standard room conditions is 1.2 kg⁄m3 . Express the density in BG and U.S. Customary units. Show the conversion steps.

Convert the following into S.I. units, show complete solution, Do not use conversion table in getting the direct equivalent of Psi, Psf, KPa, Pa, ft-lb, Etc. go for the basic and show the solution 1) 123kg/cm2 to KPa 2) 370 Psi to kg/cm2 3)60 ft-lb to KN-m

1.37 What is the specific weight of air at 70 psia and 70 °F?

2.19 Determine the change in the kinematic viscosity of air that is heated from 10°C to 70°C. Assume standard atmospheric pressure.