Mass Transfer The unit of volumetric diffusivity is Cm/sec Cm²/seC₂ Cm²/sec Cm³/sec Cm/sec Cm²/seC₂ Cm²/sec Cm³/sec ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The binary diffusivity in gases at atmospheric conditions is about 10-1 cm²/sec 10-9 cm/sec 10-3 sec/cm 10-4 cm²/seC₂ 10-1 cm²/sec 10-9 cm/sec 10-3 sec/cm 10-4 cm²/seC₂ ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer When both the fluids flow concurrently in an absorber, the slope of the operating line is 1 -1 + ve - ve 1 -1 + ve - ve ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Back-trapping in a distillation column Decreases tray efficiency Is desirable, as it provides improved vapour-liquid contact Increases tray efficiency Reduces pressure drop Decreases tray efficiency Is desirable, as it provides improved vapour-liquid contact Increases tray efficiency Reduces pressure drop ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of liquids, the binary diffusivity is proportional to (where, T = temperature) 1/T √T T² T 1/T √T T² T ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer An example of elutioh is Separation of uranium oxide from its ore by H₂SO₄ in a Pachuca tank Separation of sugar from sugar beet by hot water Recovery of vegetable oils from seeds Dissolution of tannin out of tree barks by water Separation of uranium oxide from its ore by H₂SO₄ in a Pachuca tank Separation of sugar from sugar beet by hot water Recovery of vegetable oils from seeds Dissolution of tannin out of tree barks by water ANSWER DOWNLOAD EXAMIANS APP