Mass Transfer
Moisture in a solid exerting an equilibrium vapour pressure equal to that of the pure liquid at the same temperature is called the __________ moisture.

Bound
Critical
Unbound
Free

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Mass Transfer
Unsaturated air (with dry bulb temperature and dew point being 35°C and 18°C respectively) is passed through a water spray chamber maintained at 15°C. The air will be cooled

And humidified
And dehumidified with decrease in wet bulb temperature
At the same relative humidity
And dehumidified with increase in wet bulb temperature

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Mass Transfer
The relation among various mass transfer co-efficients (M.T.C) for ideal gases is given by (where, Kc & Km are M.T.C. for equimolar counter diffusion with concentration & mole fraction respectively as the driving force. and, Kp = M.T.C. for diffusion of a gas through a stagnant inert gas with pressure as driving force.)

None of these
Kc = Kp . RT = Km . RT/p
Kc = Kp/RT = Km . RT/P
Kc = Kp = Km

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