Nitrogen gas is flowing isothermally at 77 O F through a horizontal 3-in. inside-diameter pipe at a rate of 0.28 lbm/sec. The absolute pressures at the inlet and outlet of the pipe are 2 atm and 1...

Nitrogen gas is flowing isothermally at 77^OF through a horizontal 3-in. inside-diameter pipe at a rate of 0.28 lbm/sec. The absolute pressures at the inlet and outlet of the pipe are 2 atm and 1 atm, respectively. Determine the lost work lw in BTU/lbm. The gas constant is 0.7302 ft³
atm/lbmole
^OF. Molecular weight of N₂
is 28.