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

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