Mass Transfer When an unsaturated air-water mixture is heated at constant pressure, then The partial pressure of water vapour increases The relative humidity decreases The relative humidity increases The specific humidity decreases The partial pressure of water vapour increases The relative humidity decreases The relative humidity increases The specific humidity decreases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Corresponding to Nusselt number in heat transfer, the dimensionless group in mass transfer is the __________ number. Stanton Schmidt Peclet Sherwood Stanton Schmidt Peclet Sherwood ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The operation involved when the soluble material is largely on the surface of an insoluble solid and is merely washed off by the solvent is called Percolation None of these Elutriation or elution Decoction Percolation None of these Elutriation or elution Decoction ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of unsaturated air Both of the options given here Dew point < wet bulb temperature Wet bulb temperature < dry bulb temperature None of the listed here Both of the options given here Dew point < wet bulb temperature Wet bulb temperature < dry bulb temperature None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Danckwerts developed the __________ theory. Surface renewal None of these Penetration Film Surface renewal None of these Penetration Film ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Acetone is to be removed from air in an isothermal dilute absorber using pure water as solvent. The incoming air contains 5 mole% of acetone (yin = 0.05). The design equation to be used for obtaining the number of trays (N) of the absorber is, N+2 = 6 log (yin/yout).For 98% recovery of acetone, the number of trays required is/are 10 8 9 1 10 8 9 1 ANSWER DOWNLOAD EXAMIANS APP