Mass Transfer Molecular diffusivity of a liquid Decreases with temperature May increase or decrease with temperature Increases with temperature Is independent of temperature Decreases with temperature May increase or decrease with temperature Increases with temperature Is independent of temperature ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Use of raschig rings in place of crushed stones as packing in packed beds (other things being same) Decreases pressure drop, increases surface area Decreases pressure drop, decreases surface area Increases pressure drop, increases surface area Increases pressure drop, decreases surface area Decreases pressure drop, increases surface area Decreases pressure drop, decreases surface area Increases pressure drop, increases surface area Increases pressure drop, decreases surface area ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For the same system, if the same liquid used in an absorber is decreased, the tower height will Decrease or increase ; depends on the type of liquid Increase Remain unaffected Decrease Decrease or increase ; depends on the type of liquid Increase Remain unaffected Decrease ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Mass transfer co-efficient 'K' according to penetration theory varies with mass dif-fusivity as D 1/D D1.5 D0.5 D 1/D D1.5 D0.5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer __________ column is preferred to be used, when a high liquid hold up is required in a reactor for gas-liquid reaction. Tray Bubble Packed Spray Tray Bubble Packed Spray ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Very tall packed towers are divided into series of beds to Avoid flooding Avoid channelling Reduce the overall pressure drop Reduce liquid hold-up Avoid flooding Avoid channelling Reduce the overall pressure drop Reduce liquid hold-up ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS