Q. Say True or False.

I) Vapour- at superheated temperature
II) Gas – at condensation temperature

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Q. Partial pressure equals vapour pressure if it is___________

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Q. De-humidification is done in

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Q. The humidity is represented in

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Q. For an air(A)-water vapour(B) mixture, the partial pressure of the air is 5 pa and the total pressure of the system is 15 pa. The molal absolute humidity is

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Q. By differencing the temperature, heat added or removed is

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Q. Mass absolute humidity is

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Q. For an air(A)-water vapour(B) mixture, the partial pressure of the air is 5 pa and the total pressure of the system is 15 pa. The absolute humidity in mass of air/mass of water vapour is

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Q. In an operation, the enthalpy is similar throughout the initial and final condition such operation is

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Q. At the gas temperature, the liquid is in equilibrium with vapour for ____________

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Q. In humidification the gas is ____________ in the liquid for the mass transfer to take part.

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Q. Humidification is a

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Q. The higher difference in pressure inside the tray tower cause

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Q. For a better stage efficiency, must have large interfacial surface and low mass transfer co-efficient.

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Q. Find the process where an agitated vessel is required.

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Q. Guess the interfacial area of a bubble with a gas volume of 2.5 x10⁻³ cubic meters and diameter of 0.125 cm.

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Q. If the relative velocity of the gas and liquid inside the bubble column of cross sectional area 0.2 meters with gas holdup of 0.736 is 3.6 meters square per second. The expected slip velocity is

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Q. In a Bubble column, if the velocity of the gas is low, then the bubble diameter is equals to______

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Q. Guess the diameter of the bubble for an air-water system in a sparged vessel with gas holdup of 0.1 and liquid flow rate of 0.15 meters per second.

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Q. In sparged vessel of area 50 cm and a gas holdup of 3 cubic meters per cubic meters, the flow rate of the gas is 5 cubic meters per second. The value of true gas velocity in meters per second is

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