Bernoulli's equation is essentially a statement of
Correct answer: C. conservation of energy for a flowing fluid
- A. conservation of mass
- B. conservation of momentum
- C. conservation of energy for a flowing fluid
- D. Newton's third law
Explanation
The equation adds pressure energy, kinetic energy and potential energy per unit volume and states that the total is the same all along a streamline for steady, non viscous, incompressible flow. Conservation of mass is expressed separately by the continuity equation. The restriction to non viscous flow is why the equation only approximates real pipes.
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About Bernoulli's Equation
Bernoulli’s equation applies conservation of energy to steady flow of an incompressible, non-viscous fluid along a streamline: pressure, kinetic and gravitational terms have a constant total. It explains pressure-speed changes in narrow pipes, Venturi meters and lift, and differs from continuity because it relates pressure as well as velocity and height.
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