1kg of gaseous CO2 contained in a closed system undergoes a reversible process of constant pressure. During the process 42KJ of internal energy is decreased. Determine the work done during the process. Take Cp=840j/kg and Cv=600j/kg

What difference(s) did you notice using a pneumatic circuit over hydraulic circuit. explain why the pneumatic piston stumbles when it hits an obstacle.

Afull journal bearing has a journal diameter of 27 mm, with a unilateral tolerance of -0.028 mm. the bushing bore has a diameter of 27.028 mm and a unilateral tolerance of 0.04 mm. the l/d ratio is 0.5. the load is 1.3 kn and the journal runs at 1200 rev/min. if the average viscosity is 50 mpa-s, find the minimum film thickness, the power loss, and the side flow for the minimum clearance assembly.

Wiy doeres rere okhn a pump whon working betwon the same pressure range?