For Laminar flow through a packed bed, the pressure drop is proportional to (Vs is the superficial liquid velocity and Dp is the particle diameter)
A. $$\frac{{{{\text{V}}_{\text{s}}}}}{{{{\text{D}}_{\text{p}}}^2}}$$
B. $$\frac{{{{\text{V}}_{\text{s}}}^2}}{{{{\text{D}}_{\text{p}}}^2}}$$
C. $$\frac{{{{\text{V}}_{\text{s}}}^2}}{{{{\text{D}}_{\text{p}}}^3}}$$
D. $$\frac{{{{\text{V}}_{\text{s}}}}}{{{{\text{D}}_{\text{p}}}^3}}$$
Answer: Option A
This Question Belongs to Chemical Engineering >> Fluid Mechanics
A. Thermal conductivity
B. Electrical conductivity
C. Specific gravity
D. Electrical resistivity
A. $$\frac{{\text{V}}}{{{{\text{V}}_{\max }}}} = {\left( {\frac{{\text{x}}}{{\text{r}}}} \right)^{\frac{1}{7}}}$$
B. $$\frac{{\text{V}}}{{{{\text{V}}_{\max }}}} = {\left( {\frac{{\text{r}}}{{\text{x}}}} \right)^{\frac{1}{7}}}$$
C. $$\frac{{\text{V}}}{{{{\text{V}}_{\max }}}} = {\left( {{\text{x}} \times {\text{r}}} \right)^{\frac{1}{7}}}$$
D. None of these
A. d
B. $$\frac{1}{{\text{d}}}$$
C. $$\sigma $$
D. $$\frac{l}{\sigma }$$
A. $$\frac{{4\pi {\text{g}}}}{3}$$
B. $$\frac{{0.01\pi {\text{gH}}}}{4}$$
C. $$\frac{{0.01\pi {\text{gH}}}}{8}$$
D. $$\frac{{0.04\pi {\text{gH}}}}{3}$$
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