Mass Transfer The mass transfer co-efficient for a solid sphere of radius 'a' dissolving in a large volume of quiescent liquid, in which D is the diffusivity of solute, is Dependent on the Reynolds number D/2a Proportional to √D D/a Dependent on the Reynolds number D/2a Proportional to √D D/a ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Humid volume, at a given temperature is a/an __________ function of humidity. Logarithmic Exponential Inverse Linear Logarithmic Exponential Inverse Linear ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In the constant rate period of the rate of drying curve for batch drying, None of these Surface evaporation of unbound moisture occurs Cracks develop on the surface of the solid Rate of drying decreases abruptly None of these Surface evaporation of unbound moisture occurs Cracks develop on the surface of the solid Rate of drying decreases abruptly ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of gases, the binary diffusivity is proportional to (where, P = pressure) 1/√P P 1/P √P 1/√P P 1/P √P ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The feed to fractionating column is changed from saturated vapour to saturated liquid. If the separation and reflux ratio remains unchanged, the number of ideal stages will Increase Decrease Remains same Depend on saturated boiling point; may increase or decrease Increase Decrease Remains same Depend on saturated boiling point; may increase or decrease ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Dry bulb temperature of unsaturated air is more than its __________ temperature. Both A & B Neither A nor B Wet bulb Dew point Both A & B Neither A nor B Wet bulb Dew point ANSWER DOWNLOAD EXAMIANS APP
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