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Stoichiometry MCQ Questions & Answers | Chemical Engineering

Learn Stoichiometry MCQ questions & answers are available for a Chemical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Stoichiometry MCQ question is the important chapter for a Chemical Engineering and GATE students. Page-10 section-1

Each section contains 100 MCQs on Stoichiometry .
91
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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Answer: Option C
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92
Vapor pressure of water at 100°C is about __________ bar.
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Answer: Option B
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93
1 m3 is approximately equal to
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Answer: Option B
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94
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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Answer: Option B
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95
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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Answer: Option C
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96
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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Answer: Option C
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97
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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Answer: Option D
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98
Recycling in a chemical process facilitates
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Answer: Option D
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99
With rise in temperature, the solubility of ammonia in water at a fixed pressure
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Answer: Option B
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100
A 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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Answer: Option C
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