Chemical Engineering Thermodynamics MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Chemical Engineering Thermodynamics, 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 Chemical Engineering Thermodynamics 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 Chemical Engineering Thermodynamics mcq questions that explore various aspects of Chemical Engineering Thermodynamics problems. Each MCQ is crafted to challenge your understanding of Chemical Engineering Thermodynamics 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 Chemical Engineering Thermodynamics 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 Chemical Engineering Thermodynamics. 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 Chemical Engineering Thermodynamics knowledge to the test? Let's get started with our carefully curated MCQs!

Chemical Engineering Thermodynamics MCQs | Page 18 of 55

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Q171.
Pick out the wrong statement.

a.

Surface tension of a substance vanishes at critical point, as there is no distinction between liquid and vapour phases at its critical point.

b.

Entropy of a system decreases with the evolution of heat.

c.

Change of internal energy is negative for exothermic reactions.

d.

The accentric factor for all materials is always more than one.

Discuss
Answer: (d).The accentric factor for all materials is always more than one.
Q172.
Translational kinetic energy of molecules of an ideal gas is proportional to (where, T = absolute temperature of the gas )

a.

T

b.

โˆšT

c.

T²

d.

1/โˆšT

Discuss
Answer: (a).T
Q173.
Equation which relates pressure, volume and temperature of a gas is called the

a.

equation of state

b.

Gibbs Duhem equation

c.

ideal gas equation

d.

none of these

Discuss
Answer: (a).equation of state
Q174.
Claussius-Clayperon equation gives accurate result, when the

a.

vapour pressure is relatively low and the temperature does not vary over wide limits.

b.

vapour obeys the ideal gas law and the latent heat of vaporisation is constant.

c.

volume in the liquid state is negligible compared with that in the vapour state.

d.

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

Discuss
Answer: (d).all (a), (b) and (c).
Q175.
The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called __________ temperature.

a.

Boyle

b.

inversion

c.

critical

d.

reduced

Discuss
Answer: (a).Boyle
Q176.
The expression for entropy change, ฮ”S = n Cp . ln (Tโ‚‚/T1), is valid for the __________ of a substance.

a.

simultaneous pressure & temperature change

b.

heating

c.

cooling

d.

both (b) and (c)

Discuss
Answer: (d).both (b) and (c)
Q177.
Near their critical temperatures, all gases occupy volumes __________ that of the ideal gas.

a.

less than

b.

same as

c.

more than

d.

half

Discuss
Answer: (a).less than
Q178.
The free energy change for a chemical reaction is given by (where, K = equilibrium constant)

a.

RT lnK

b.

-RT lnK

c.

-R lnK

d.

T lnK

Discuss
Answer: (b).-RT lnK
Q179.
Free energy, fugacity and activity co-efficient are all affected by change in the temperature. The fugacity co-efficient of a gas at constant pressure ____with the increase of reduced temperature.

a.

decreases

b.

increases

c.

remains constant

d.

decreases logarithmically

Discuss
Answer: (b).increases
Q180.
In the reaction, Hโ‚‚ + Iโ‚‚ โ†” 2HI, addition of an inert gas will

a.

increase the partial pressure of Hโ‚‚.

b.

increase the partial pressure of Iโ‚‚.

c.

increase the total pressure and hence shift the equilibrium towards the right.

d.

not effect the equilibrium conditions

Discuss
Answer: (d).not effect the equilibrium conditions
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