Mass Transfer If Rm is the minimum reflux ratio, the optimum reflux ratio may be around __________ Rm. 3 to 4 5 1.2 to 1.5 2.5 to 3 3 to 4 5 1.2 to 1.5 2.5 to 3 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following binary systems is an example of a maximum boiling azeotrope? Water-hydrochloric acid None of the listed here Acetone-carbon disulphide Water-ethyl alcohol Water-hydrochloric acid None of the listed here Acetone-carbon disulphide Water-ethyl alcohol ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Batch tray dryers suffers from the disadvantage of High maintenance cost All of the listed here Non-uniform & low production rate High labour cost & low heat economy High maintenance cost All of the listed here Non-uniform & low production rate High labour cost & low heat economy ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following operations does not involve leaching? Dissolving gold from ores Removing nicotine from its water solution by kerosene Dissolving sugar from the cells of the beet Dissolving pharmaceutical products from bark or roots Dissolving gold from ores Removing nicotine from its water solution by kerosene Dissolving sugar from the cells of the beet Dissolving pharmaceutical products from bark or roots ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The Schmidt number which is defined as, μ/ρ D, is the ratio of the Momentum diffusivity to the mass dif-fusivity None of these Momentum diffusivity to the thermal diffusivity Thermal diffusivity to the mass diffusivity Momentum diffusivity to the mass dif-fusivity None of these Momentum diffusivity to the thermal diffusivity Thermal diffusivity to the mass diffusivity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer When an unsaturated air-water mixture is heated at constant pressure, then The relative humidity decreases The specific humidity decreases The partial pressure of water vapour increases The relative humidity increases The relative humidity decreases The specific humidity decreases The partial pressure of water vapour increases The relative humidity increases ANSWER DOWNLOAD EXAMIANS APP
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