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What is the unit of pressure gradient?

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+1 vote
in Fluid Mechanics by (118k points)
What is the unit of pressure gradient?

(a) Pa/m

(b) Nm

(c) Pa

(d) N/m

This question was addressed to me in exam.

This intriguing question comes from Shear Stress and Pressure Gradient topic in portion Viscous Flow & Turbulent Flow of Fluid Mechanics

1 Answer

+2 votes
by (362k points)
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Best answer
The correct answer is (a) Pa/m

For explanation I would say: Pressure gradient is a dimensional quantity. It is expressed in units of pressure per unit length. It determines which quantity and which direction the pressure changes around a particular location.

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