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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?

5 years ago

Answers : (2)

Navjyot Kalra
askIITians Faculty
654 Points
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232-227_1.PNG
5 years ago
H
13 Points
							
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
 
 
 
 
one year ago
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