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How much work is done by pressure in forcing 1.4 m 3 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?

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?

Grade:upto college level

2 Answers

Navjyot Kalra
askIITians Faculty 654 Points
8 years ago
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H
13 Points
5 years ago
Actually, since density= m/V once substituted, the equation should be(p_{1} - p_{2}) V = 1/2 \rho (v_{1}^{2} - v_{2}^{2}) therefore, Work would be\frac{(1.2 atm)(\frac{1.01\ast 10^5 pa}{1 atm})}{1.4 m^3}(1.2 atm) \frac{(1.01\ast 10^5 pa)}{1 atm} (1.4 m^3 ) which gives a final answer of 1.697 \ast 10^5 J
 
 
 
 

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