For the air water system under ambient conditions, the adiabatic saturation temperature and the wet bulb temperature are nearly equal, because

Mass Transfer
For the air water system under ambient conditions, the adiabatic saturation temperature and the wet bulb temperature are nearly equal, because

They are always equal under all circumstances

Water has a high latent heat of evaporation

Solubility of the components of air in water is very small

Lewis number is close to unity

They are always equal under all circumstances

Water has a high latent heat of evaporation

Solubility of the components of air in water is very small

Lewis number is close to unity

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Mass Transfer
The value of NA/(NA + NB), for steady state equimolal counter diffusion of two gases 'A' and 'B' is

0.5

2

∞

1

0.5

2

∞

1

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Mass Transfer
Make up water is supplied during cooling tower operation to compensate for water losses due to

Evaporation

Entrainment

Blowdown

All of these

Evaporation

Entrainment

Blowdown

All of these

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Mass Transfer
The Schmidt number which is defined as, μ/ρ D, is the ratio of the

Momentum diffusivity to the thermal diffusivity

Thermal diffusivity to the mass diffusivity

Momentum diffusivity to the mass dif-fusivity

None of these

Momentum diffusivity to the thermal diffusivity

Thermal diffusivity to the mass diffusivity

Momentum diffusivity to the mass dif-fusivity

None of these

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Mass Transfer
For a distillation column operating at minimum reflux, the

None of these

Number of plates required will be maximum

Reflux ratio will be maximum

Concentration of liquid and vapour leaving a plate will be same

None of these

Number of plates required will be maximum

Reflux ratio will be maximum

Concentration of liquid and vapour leaving a plate will be same

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Mass Transfer
In case of steam distillation, the steam leaving the liquid is not completely saturated with distillate vapour, because

Total pressure is less

Temperature is less

Saturated steam is used for steam distillation

Mixing of steam with the material being vaporised is not so intimate as to result in equilibrium condition

Total pressure is less

Temperature is less

Saturated steam is used for steam distillation

Mixing of steam with the material being vaporised is not so intimate as to result in equilibrium condition

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Mass Transfer

Mass Transfer For the air water system under ambient conditions, the adiabatic saturation temperature and the wet bulb temperature are nearly equal, because

Mass Transfer The value of NA/(NA + NB), for steady state equimolal counter diffusion of two gases 'A' and 'B' is

Mass Transfer Make up water is supplied during cooling tower operation to compensate for water losses due to

Mass Transfer The Schmidt number which is defined as, μ/ρ D, is the ratio of the

Mass Transfer For a distillation column operating at minimum reflux, the

Mass Transfer In case of steam distillation, the steam leaving the liquid is not completely saturated with distillate vapour, because

Mass Transfer
For the air water system under ambient conditions, the adiabatic saturation temperature and the wet bulb temperature are nearly equal, because

Mass Transfer
The value of NA/(NA + NB), for steady state equimolal counter diffusion of two gases 'A' and 'B' is

Mass Transfer
Make up water is supplied during cooling tower operation to compensate for water losses due to

Mass Transfer
The Schmidt number which is defined as, μ/ρ D, is the ratio of the

Mass Transfer
For a distillation column operating at minimum reflux, the

Mass Transfer
In case of steam distillation, the steam leaving the liquid is not completely saturated with distillate vapour, because