Mass Transfer Most important factor to be considered in the selection of packings for absorbers is the __________ of packing. Durability Cost Porosity Size Durability Cost Porosity Size ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The binary diffusivity in gases and liquids vary respectively as T and T3/2 T3/2 and T √T and T3/2 T3/2 and √T T and T3/2 T3/2 and T √T and T3/2 T3/2 and √T ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Very tall packed towers are divided into series of beds to Avoid channelling Reduce the overall pressure drop Avoid flooding Reduce liquid hold-up Avoid channelling Reduce the overall pressure drop Avoid flooding Reduce liquid hold-up ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Deairation (removal of O₂) of water is done by Rectification Adsorption Absorption Ion-exchange Rectification Adsorption Absorption Ion-exchange ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Positive deviation from Raoult's law means a mixture whose total pressure is Less than the sum of the vapour pressure of the components Greater than that computed for ideality None of these Less than that computed for ideality Less than the sum of the vapour pressure of the components Greater than that computed for ideality None of these Less than that computed for ideality ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The feed to fractionating column is changed from saturated vapour to saturated liquid. If the separation and reflux ratio remains unchanged, the number of ideal stages will Increase Depend on saturated boiling point; may increase or decrease Decrease Remains same Increase Depend on saturated boiling point; may increase or decrease Decrease Remains same ANSWER DOWNLOAD EXAMIANS APP
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