# To a closed system 150 kJ of work… solved problem

#### To a closed system 150 kJ of work is supplied. If the initial volume is 0.6 m3 and pressure of the system changes as p = 8 -4V, where p is in bar and V is in m3, determine the final volume and pressure of the system.

To a closed system 150 kJ of work is supplied. If the initial volume is 0.6 m3 and pressure of the system changes as p = 8 -4V, where p is in bar and V is in m3, determine the final volume and pressure of the system.

1. A diesel engine piston which has an area of 45 cm2 moves 5 cm during part of suction stroke is 0.9 X 105 N/m2. The difference between the suction and atmospheric pressure is accounted for flow resistance in the suction pipe and inlet valve. Find the net work done during the process.

2. The properties of a closed system following the relation between pressure and volume as pV = 3 where p is in bar V is in m3. Calculate the work done when the pressure increases from 1.5 bar to 7.5 bar.

3. To a closed system 150 kJ of work is supplied. If the initial volume is 0.6 m3 and pressure of the system changes as p = 8 -4V, where p is in bar and V is in m3, determine the final volume and pressure of the system. #closed system 150 kJ