Question:
Mass transfer co-efficient and diffusivity are related according to film theory as \( K \propto ____ \)
Mass transfer co-efficient and diffusivity are related according to film theory as \( K \propto ____ \)
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In simple diffusion-controlled cases, \( K \propto D \) from film theory.
Updated On: May 29, 2025
- \( D^2 \)
- \( D^{0.75} \)
- \( D^{1.5} \)
- \( D \)
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The Correct Option is D
Solution and Explanation
In film theory, mass transfer coefficient is directly proportional to diffusivity:
\[ K \propto \frac{D}{\delta} \]
\[ K \propto \frac{D}{\delta} \]
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