Chemical Engineering :: Stoichiometry
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Pick out the wrong statement.
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The vapor pressure of liquids of similar chemical nature at any particular temperature __________ with increase in the molecular weight.
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The vapor pressure of liquids (having similar chemical nature) at any specified temperature __________ with increasing molecular weight.
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Mass number of an atom is the sum of the numbers of
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Under conditions of equal reduced pressure and equal reduced temperature, substances are said to be in the 'corresponding states'. At equal reduced conditions i.e., at the corresponding state, the __________ of different gases are nearly the same.
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Colligative properties of a dilute solution are those, which depend entirely upon the
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The osmotic pressure of a solution increases, if its __________ is decreased.
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Pure aniline is evaporating through a stagnant air film of 1 mm thickness at 300 K and a total pressure of 100 KPa. The vapor pressure of aniline at 300 K is 0.1 KPa. The total molar concentration under these conditions is 40.1 mole/m3 . The diffusivity of aniline in air is 0.74xl0-5m2/s.The numerical value of mass transfer co-efficient is 7.4 x 10-3. The rate of evaporation of aniline is 2.97 x 10-4. Its units are
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A.
The evaporation of aqueous solution of glucose causes its molarity to increase.
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B.
Both the freezing point as well as boiling point of sea water is more than that of distilled water.
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C.
The solution containing equal masses of two liquids 'X' and 'Y' has the same mole fraction of' 'X' and 'Y'.
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D.
both (b) and (c)
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