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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

Chemical Engineering MCQs designed for job test and interview preparation, particularly for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover important topics such as the fundamentals of chemical engineering, chemical processes, chemical reactions, process control, and instrumentation, along with other key concepts in the field.

Avogadro number is the number of molecules in one ____________ of a gas?

A gram

B Kilogram

C gm.mole

D Litre

Review Detailed Answer

Correct Answer: gm.mole

Which equation is not an equation of state ?

A PV = RT + B/V + y/V2 + ….

B (P + a/V2)(V-b) = RT

C loge (p/p0) = (λ/R) (1/T0 – 1/T)

D p = [RT/(V – b)] – (a/TV2)

Review Detailed Answer

Correct Answer: loge (p/p0) = (λ/R) (1/T0 – 1/T)

A sample of well water contains 140 gm/m3 Ca2+ ions and 345 gm/m3 Na+ ions. The hardness of the sample of water, expressed in terms of equivalent CaCO3 in gm/m3 is (assuming atomic masses of Ca :40, Na : 23, C : 12, O : 16) ?

A 350

B 485

C 140

D 345

Review Detailed Answer

Correct Answer: 350

For a reaction, X → Y, if the concentration of ‘X’ is tripled; the rate becomes nine times. The order of reaction is__________________?

A 0

B 1

C 2

D 3

Review Detailed Answer

Correct Answer: 2

1 kg/cm2 is equal to________________?

A 760 torr

B 1 KPa

C 10 metres of water column

D 1 metre of water column

Review Detailed Answer

Correct Answer: 10 metres of water column

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___________________?

A 40732

B 2676

C 2263

D 540

Review Detailed Answer

Correct Answer: 2263

The hydroxyl ion (OH-) concentration in a solution having pH value 3 will be_________________?

A 10-11

B 10-10

C 10-3

D 10-4

Review Detailed Answer

Correct Answer: 10-11

For estimation of heat capacity of a solid compound, one can use________________?

A Clapeyron’s equation

B Gibb’s equation

C Kopp’s rule

D Trouton’s rule

Review Detailed Answer

Correct Answer: Kopp’s rule

40 gms each of the methane and oxygen are mixed in an empty container maintained at 40°C. The fraction of the total pressure exerted by oxygen is_________________?

A 1/2

B 1/3

C 1/4

D 2/3

Review Detailed Answer

Correct Answer: 1/3

Which of the following holds good for a solution obeying Raoult’s law (i.e., an ideal solution) (where, ΔH = heat of mixing, and ΔV = volume change on mixing) ?

A ΔH = 1 (+ ve) and Δ V = -ve

B ΔH = 0

C ΔV = 0

D Both B. and C.

Review Detailed Answer

Correct Answer: Both B. and C.

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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All Topics 9594

Avogadro number is the number of molecules in one ____________ of a gas?

Which equation is not an equation of state ?

A sample of well water contains 140 gm/m3 Ca2+ ions and 345 gm/m3 Na+ ions. The hardness of the sample of water, expressed in terms of equivalent CaCO3 in gm/m3 is (assuming atomic masses of Ca :40, Na : 23, C : 12, O : 16) ?

For a reaction, X → Y, if the concentration of ‘X’ is tripled; the rate becomes nine times. The order of reaction is__________________?

1 kg/cm2 is equal to________________?

The hydroxyl ion (OH-) concentration in a solution having pH value 3 will be_________________?

For estimation of heat capacity of a solid compound, one can use________________?

40 gms each of the methane and oxygen are mixed in an empty container maintained at 40°C. The fraction of the total pressure exerted by oxygen is_________________?

Which of the following holds good for a solution obeying Raoult’s law (i.e., an ideal solution) (where, ΔH = heat of mixing, and ΔV = volume change on mixing) ?