Chemical Engineering :: Mass Transfer
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Which of the following binary systems is an example of a maximum boiling azeotrope ?
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(NRe . NSc) is termed in mass transfer operation as the __________ number.
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The binary diffusivity in gases and liquids vary respectively as
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Pick out the correct statement.
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Pick out the correct statement.
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Pick out the correct statement.
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Very tall packed towers are divided into series of beds to
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Moisture contained by a substance in excess of the equilibrium moisture is called the __________ moisture.
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With increase in temperature, the solubility of gases in liquids, at fixed pressure
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In most of the vacuum crystalliser, vacuum is generally produced by means of a
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A.
The slope of the stripping line is always less than unity.
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B.
For a given separation in a binary distillation column, with increase in reflux ratio (above the minimum reflux ratio), the fixed cost of the distillation column first increases and then decreases.
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C.
In Ponchon-Savarit method of no. of theoretical plate determination, the stripping and rectifying operating lines are vertical at total reflux.
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D.
Kremsor-Brown-Souder's equation is used to calculate the efficiency of a plate tower.
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A.
Bound moisture is removed during constant rate drying period.
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B.
Free moisture is removed during falling rate drying period.
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C.
The sum of free moisture and equilibrium moisture in a solid is called the critical moisture.
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D.
The driving force for mass transfer in a wet solid is its free moisture content.
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