How much work is done by pressure in forcing 1.4 m3 of water through a 13-mm internal diameter pipe if the difference in pressure at the two ends of the pipe is 1.2 atm?
Consider the point 1 and 2 at the ends of the pipe
Here, the mass of the flow of water is m and the volume of the water is V
Rounding * to two significant figure, the work done by the pressure of water is 8.7J.**
