The equation of continuity Av = constant. The constant shows:
Correct answer: D. volume flow rate
- A. volume of fluid
- B. mass the of fluid
- C. density the of fluid
- D. volume flow rate
Explanation
In Av equal to a constant, A is area and v is speed, so their product is the volume of fluid passing per second, the volume flow rate. It stays constant for an incompressible fluid. The mass or density would need rho in the expression.
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About Equation of Continuity
The equation of continuity expresses conservation of mass in fluid flow. For steady incompressible flow, Av remains constant, so fluid speed increases when the cross-sectional area decreases; for compressible flow, ρAv is constant. This relation describes flow rate and area-speed changes without including pressure effects from Bernoulli’s equation.
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