Mass Transfer The unit of volumetric diffusivity is Cm²/seC₂ Cm/sec Cm³/sec Cm²/sec Cm²/seC₂ Cm/sec Cm³/sec Cm²/sec ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Danckwerts developed the __________ theory. Surface renewal Film None of these Penetration Surface renewal Film None of these Penetration ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer A solid material shows case hardening properties while drying. Which of the following should be controlled to control the drying process? Humidity of inlet air Flow rate of inlet air Relative humidity of outlet air Temperature of the solid Humidity of inlet air Flow rate of inlet air Relative humidity of outlet air Temperature of the solid ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The drying time between fixed moisture content within diffusion controlled 'falling rate period' is proportional to (assuming that drying occurs from all surfaces of the solid) (where, T = thickness of the solid ) T³ √T T T² T³ √T T T² ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Total reflux in a distillation operation requires minimum All of these Number of plates Reboiler load Condenser load All of these Number of plates Reboiler load Condenser load ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a distillation operation, what is the effect of the temperature of the reflux stream (given below) on the condenser and reboiler loads? Reflux conditions:(i) Reflux stream is completely liquid and is at its bubble point.(ii) Reflux stream is below its bubble point. Reboiler load is the same in both the cases but condenser load is higher in case (ii) Both condensor and reboiler loads are higher in case (ii) as compared to case (i) Condenser and reboiler loads are the same in both the cases Condenser load is the same in both the cases but reboiler load is higher in case (ii) Reboiler load is the same in both the cases but condenser load is higher in case (ii) Both condensor and reboiler loads are higher in case (ii) as compared to case (i) Condenser and reboiler loads are the same in both the cases Condenser load is the same in both the cases but reboiler load is higher in case (ii) ANSWER DOWNLOAD EXAMIANS APP
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