Determine the irreversibility produced when 3.00 lbm of carbon dioxide at 70.0°F and 30.0 psia are adiabatically mixed with 7.00 lbm of carbon dioxide at 100.°F and 15.0 psia. The final mixture pressure is 17.0 psia.
Assume the carbon dioxide behaves as a constant specific heat ideal gas and that the local environment is at 14.7 psia and 70.0°F.