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6. A vertically held packed bed has a height of $ 1 \mathrm{~m} $, and a void fraction of 0.1 , when there is no flow through the bed. The incipient fluidization is set in by injection of a fluid of density $ 1 \mathrm{~kg} / \mathrm{m}^{3} $. The particle density of the solids is $ 3000 \mathrm{~kg} / \mathrm{m}^{3} $. Acceleration due to gravity is $ 9.81 \mathrm{~m} / \mathrm{s}^{2} $. The pressure drop (in $ \mathrm{Pa} $ ) across the height of the bed is $ 26478 \mathrm{~Pa} $ (round off to nearest integer). |21

          6. A vertically held packed bed has a height of \( 1 \mathrm{~m} \), and a void fraction of 0.1 , when there is no flow through the bed. The incipient fluidization is set in by injection of a fluid of density \( 1 \mathrm{~kg} / \mathrm{m}^{3} \). The particle density of the solids is \( 3000 \mathrm{~kg} / \mathrm{m}^{3} \). Acceleration due to gravity is \( 9.81 \mathrm{~m} / \mathrm{s}^{2} \). The pressure drop (in \( \mathrm{Pa} \) ) across the height of the bed is
\( 26478 \mathrm{~Pa} \) (round off to nearest integer). |21

$6. A vertically held packed bed has a height of 1 m, and a void fraction of 0.1 , when there is no flow through the bed. The incipient fluidization is set in by injection of a fluid of density 1 kg / m^3. The particle density of the solids is 3000 kg / m^3. Acceleration due to gravity is 9.81 m / s^2. The pressure drop (in Pa ) across the height of the bed is 26478 Pa (round off to nearest integer). |21$

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