Question

Water at 20°C flows in a steel pipe whose diameter is 26.65 mm. The volume flow rate of the water in the pipe is measured to be 3.155 x 10-4 3/s. The density at this temperature is given as 998.2 kg/m3. The mass flow rate is: m 0.315 kg/s | 1.22 kg/s O 0.522 kg/s O 0.575 kg/s 0.419 kg/s Previous Page Next Page Page 8 of 25

Answer 1

We know that, by definition density $\rho$ is ratio of mass to volume

22 р 2

where m is mass and v is volume.

Thus, $m = \rho * v$

Therefore mass flowrate = 998.2 * 3.155 * (10 ^ (-4)) = 0.3149321 kg/s = 0.315 kg/s

Answer : Option A 0.315 kg/s

Note: Please upvote if this helps you. In case of any doubt, comment below. Good luck!