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A packed bed of $480 \mathrm{~kg}$ solid particles having particle size of $0.15 \mathrm{~mm}$ and density of $800 \mathrm{~kg} \mathrm{~m}^{-3}$ is fluidized using air at $25^{\circ} \mathrm{C}$ and 1 atmospheric pressure. If the cross section of the empty bed is $0.45 \mathrm{~m}^{2}$ and voidage at minimum fluidizing condition is $0.5,$ then the minimum height of the fluidized bed, in $\mathrm{m}$ is
(A) 7.4
(B) 5.4
(C) 2.7
(D) 1.0


Question ID - 157372 | Toppr Answer

A packed bed of $480 \mathrm{~kg}$ solid particles having particle size of $0.15 \mathrm{~mm}$ and density of $800 \mathrm{~kg} \mathrm{~m}^{-3}$ is fluidized using air at $25^{\circ} \mathrm{C}$ and 1 atmospheric pressure. If the cross section of the empty bed is $0.45 \mathrm{~m}^{2}$ and voidage at minimum fluidizing condition is $0.5,$ then the minimum height of the fluidized bed, in $\mathrm{m}$ is
(A) 7.4
(B) 5.4
(C) 2.7
(D) 1.0

1 Answer - 5876 Votes

3537

Answer Key : (C) -

(C) 2.7



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