Piston-cylinder device contains 5 kg of steam. The steam undergoes an internal energy change of 40 kJ/kg. During that process, paddle wheel work of -50 kJ is done. Determine the amount of boundary...

Extracted text: Piston-cylinder device contains 5 kg of steam. The steam undergoes an internal energy change of 40 kJ/kg. During that process, paddle wheel work of -50 kJ is done. Determine the amount of boundary work if the system is adiabatic? 90 kJ -90 kJ -150kJ 150 kJ 250 kJ Blood pressure is 80 mm Hg.Convert it into absolute pressure? (1 atm = 760 mm O O O