Fluid motion in the natural convection heat transfer between a solid...

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Fluid motion in the natural convection heat transfer between a solid surface and a fluid in contact with it, results from the

A. Existence of thermal boundary layer

B. Temperature gradient produced due to density difference

C. Buoyancy of the bubbles produced at active nucleation site

D. None of these

Answer: Option B

Solution(By Examveda Team)

In natural convection heat transfer, fluid motion is driven by the temperature gradient produced due to density difference. As a fluid near a heated surface becomes warmer, it tends to rise due to a decrease in density. Conversely, the cooler fluid descends. This creates a continuous circulation known as natural convection currents.

Therefore, the correct answer is Option B: Temperature gradient produced due to density difference.

This Question Belongs to Chemical Engineering >> Heat Transfer

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Comments ( 1 )

Bidyut Chem04 :

4 months ago

Why is it not option B?

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