Stoichiometry MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Stoichiometry, a fundamental topic in the field of Basic Chemical Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Stoichiometry MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Stoichiometry mcq questions that explore various aspects of Stoichiometry problems. Each MCQ is crafted to challenge your understanding of Stoichiometry principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Basic Chemical Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Stoichiometry MCQs are your pathway to success in mastering this essential Basic Chemical Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Stoichiometry. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Stoichiometry knowledge to the test? Let's get started with our carefully curated MCQs!

Stoichiometry MCQs | Page 28 of 42

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Q271.
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 amount of water vapour condensed (in kg) is

a.

0.0

b.

0.065

c.

0.1

d.

1.0

Discuss
Answer: (b).0.065
Q272.
Which of the following holds good for a solution obeying Raoult's law (i.e., an ideal solution) (where, ฮ”H = heat of mixing, and ฮ”V = volume change on mixing ) ?

a.

ฮ”H = 1 (+ ve)and ฮ” V = -ve

b.

ฮ”H = 0

c.

ฮ”V = 0

d.

both (b) and (c)

Discuss
Answer: (d).both (b) and (c)
Q273.
Number of gm moles of solute dissolved in 1 kg of solvent is called its

a.

normality

b.

molarity

c.

molality

d.

formality

Discuss
Answer: (c).molality
Q274.
Size range of the colloidals particles is

a.

5 - 200 milli-microns

b.

50 - 200 microns

c.

500 - 1000 microns

d.

10 - 50 Angstrom

Discuss
Answer: (a).5 - 200 milli-microns
Q275.
The latent heat of vaporisation

a.

decreases with increased temperature.

b.

decreases as pressure increases

c.

becomes zero at the critical point.

d.

all (a), (b) & (c).

Discuss
Answer: (d).all (a), (b) & (c).
Q276.
Assume that benzene is insoluble in water. The normal boiling points of benzene and water are 80.1 and 100°C respectively. At a pressure of 1 atm, the boiling point of a mixture of benzene and water is

a.

80.1°C.

b.

less than 80.1°C.

c.

100°C.

d.

greater than 80.1°C but less than 100°C.

Discuss
Answer: (d).greater than 80.1°C but less than 100°C.
Q277.
Pick out the wrong unit conversion of heat transfer co-efficient.

a.

1 kcal/m².hr.°C = 0.2048 BTU/ft².hr. °F. = 1.163 W/m².°K

b.

1 kcal/m².hr.°K = 1.163 W/m².°C

c.

1 W/m² . °C = 0.1761 BTU/ft².hr.°F.

d.

1 BTU/ft².hr.°F = 4.88 kcal/m².hr.°C = 20.44 kJ/m².hr°C = 5.678 W/m².°C.

Discuss
Answer: (b).1 kcal/m².hr.°K = 1.163 W/m².°C
Q278.
The value of gas constant 'R' is __________ kcal/kg.mole.°C.

a.

2.79

b.

1.987

c.

3.99

d.

none of these

Discuss
Answer: (d).none of these
Q279.
Diffusion is that property by virtue of which a perfume bottle when opened up in a room, makes the whole room fragrant with its smell. If a perfume 'X' diffuses twice as fast as another perfume 'Y'; what is the molecular weight of 'Y', if the vapor density of gas 'X' is 2 ? Molecular weight of gas 'X' is to be assumed to be 2.

a.

2

b.

4

c.

8

d.

16

Discuss
Answer: (d).16
Q280.
For estimation of heat capacity of a solid compound, one can use

a.

Clayperon's equation

b.

Gibb's equation

c.

Kopp's rule

d.

Trouton's rule

Discuss
Answer: (c).Kopp's rule
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