Mass Transfer Which of the following processes is followed by unsaturated air (with dry bulb temperature 12°C and relative humidity 47%) passing through water spray washer (temperature of water being constant at 40°C? Both heating and humidification Evaporative cooling Humidification only Heating only Both heating and humidification Evaporative cooling Humidification only Heating only ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer If the specific heats of a gas and a vapor are 0.2KJ/Kg.°K and 1.5 KJ/Kg.°K respectively, and the humidity is 0.01; the humid heat in KJ/°Kg. is 0.107 0.215 0.017 0.31 0.107 0.215 0.017 0.31 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer According to the Fenske equation, what will be the minimum number of plates required in a distillation column to separate an equimolar binary mixture of components A and B into an overhead fraction containing 99 mol% A and a bottom fraction containing 98 mol% B? Assume that relative volatility (αAB = 2) does not change appreciably in the coloumn. 6 10 8 12 6 10 8 12 ANSWER DOWNLOAD EXAMIANS APP
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 The partial pressure distribution of an ideal gas diffusing through another stagnant ideal gas at steady state follows a/an __________ law. Cubic Linear Parabolic Exponential Cubic Linear Parabolic Exponential ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following adsorbant is used in the refinning of sugar? Wood charcoal Bone charcoal Silica gel Activated clay Wood charcoal Bone charcoal Silica gel Activated clay ANSWER DOWNLOAD EXAMIANS APP
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