Mass Transfer McCabe-Thiele method of binary distillation does not assume that the Molar latent heats of all components are equal None of these Heat of mixing is negligible Sensible heat changes are negligible compared with latent heat changes Molar latent heats of all components are equal None of these Heat of mixing is negligible Sensible heat changes are negligible compared with latent heat changes ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer A 25 cm x 25 cm x 1 cm flat sheet weighing 1.2 kg initially was dried from both sides under constant drying rate conditions. It took 1500 seconds for the weight of the sheet to reduce to 1.05 kg. Another 1m x 1m x 1cm flat sheet of the same material is to be dried from one side only.Under the same constant drying rate conditions, the time required for drying (in seconds) from its initial weight of 19.2 kg to 17.6 kg is 2000 1000 2500 1500 2000 1000 2500 1500 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The humid volume may be increased by increasing the Both A & B Neither A nor B Temperature at constant humidity Humidity at constant temperature Both A & B Neither A nor B Temperature at constant humidity Humidity at constant temperature ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Out of the following gas-liquid contacting devices, for a given set of operating conditions, gas pressure drop is the least in __________ tower. Wetted wall Bubble cap Packed Perforated tray Wetted wall Bubble cap Packed Perforated tray ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer As the reflux ratio in a distillation coloumn is increased from the minimum, the Total cost first decreases and then increases Slope of the operating line in stripping section decreases Liquid flow increases while the vapor flow decreases for a system Number of plates decreases very slowly first and then more and more rapidly Total cost first decreases and then increases Slope of the operating line in stripping section decreases Liquid flow increases while the vapor flow decreases for a system Number of plates decreases very slowly first and then more and more rapidly ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a moderately sized packed absorption tower, channeling (which is most severe with stacked packings) can be minimised by taking the ratio of tower diameter to packing diameter < 6:1 > 4 :1 > 8:1 < 8 : 1 < 6:1 > 4 :1 > 8:1 < 8 : 1 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS