Mass Transfer Use of raschig rings in place of crushed stones as packing in packed beds (other things being same) Increases pressure drop, decreases surface area Decreases pressure drop, decreases surface area Decreases pressure drop, increases surface area Increases pressure drop, increases surface area Increases pressure drop, decreases surface area Decreases pressure drop, decreases surface area Decreases pressure drop, increases surface area Increases pressure drop, increases surface area 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 Momentum diffusivity to the thermal diffusivity None of these Thermal diffusivity to the mass diffusivity Momentum diffusivity to the mass dif-fusivity Momentum diffusivity to the thermal diffusivity None of these Thermal diffusivity to the mass diffusivity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer As per Gilliland's equation, the diffusivity is Inversely proportional to 'P' All of these Directly proportional to 'T1.5' Dependent on the molecular volume & molecular weight of components Inversely proportional to 'P' All of these Directly proportional to 'T1.5' Dependent on the molecular volume & molecular weight of components ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The suitable evaporator for concentration of foaming liquids is a __________ evaporator. Short tube Falling film Long tube Vacuum Short tube Falling film Long tube Vacuum ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following is not fixed by the process requirements, in the design of absorbers? Terminal concentrations of gas stream Flow rate of the entering gas Composition of the entering liquid None of these Terminal concentrations of gas stream Flow rate of the entering gas Composition of the entering liquid None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The Kundsen diffusivity is proportional to (where, T = absolute temperature) T⁴ T² √T T T⁴ T² √T T ANSWER DOWNLOAD EXAMIANS APP
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