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Chemical Engineering · all questionsStoichiometry
Stoichiometry
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Cp is expressed in S.I. unit as
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The number of water molecules present in a drop of water weighing 0.018 gm is 6.023 x __________
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One kg of saturated steam at 100°C and 1.01325 bar is contained in a rigid walled vessel. It lias a volume of 1.673 m3. It cools to 98°C; the saturation pressure is 0.943 bar; one kg of water vapour under these conditions has a volume of 1.789 m3. The latent heat of condensation (kJ/kg-1) under these conditions is
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1 ata is equivalent to
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1 centipoise is equivalent to
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1 kg/cm2 is equal to
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1 kgf/cm2 is not equal to
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1 torr is equivalent to
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Na2SO4.10H2O crystals are formed by cooling 100 Kg of 30% by weight aqueous solution of Na2SO4. The final concentration of the solute in the solution is 10%. The weight of crystals is
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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 0.74 × 10-5 m2/s. The numerical value of mass transfer co-efficient is 7.4 × 10-3. Its units are
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Vapor pressure of water at 100°C is about __________ bar.
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1 m3 is approximately equal to
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80 kg of Na2SO4 (molecular weight = 142) is present in 330 kg of an aqueous solution. The solution is cooled such that. 80 kg of Na2SO4.10H2O crystals separate out. The weight fraction of Na2SO4 in the remaining solution is
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Heat of neutralisation of a strong acid and strong base is always a constant value, i.e., 57 KJ/Kg mole. This is because
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What is the total pressure exerted by a mixture of 0.45 kg mole of benzene, 0.44 kg mole of toluene and 0.23 kg mole of o-xylene at 100°C, if their vapor pressures at 100°C are 1340, 560 and 210 mmHg respectively?
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A solution of specific gravity 1 consists of 35% A by weight and the remaining B. If the specific gravity of A is 0.7, the specific gravity of Bis
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Recycling in a chemical process facilitates
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With rise in temperature, the solubility of ammonia in water at a fixed pressure
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Q100
Open questionA solution having a pH value of 5 is less acidic than the one having a pH value of 2 by a factor of
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