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 50 of 55

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Q491.
Normal temperature and pressure (N.T.P.) corresponds to

a.

0°C and 760 mm Hg.

b.

15°C and 760 mm Hg.

c.

20°C and 760 mm Hg.

d.

0°C and 1 kgf/cm².

Discuss
Answer: (c).20°C and 760 mm Hg.
Q492.
Which of the following is affected by the temperature ?

a.

Fugacity

b.

Activity co-efficient

c.

Free energy

d.

All (a), (b) & (c)

Discuss
Answer: (d).All (a), (b) & (c)
Q493.
Work done may be calculated by the expression ꭍp dA for __________ processes.

a.

non-flow reversible

b.

adiabatic

c.

both (a) and (b)

d.

neither (a) nor (b)

Discuss
Answer: (c).both (a) and (b)
Q494.
The molar excess Gibbs free energy, gᴱ, for a binary liquid mixture at T and P is given by, (gᴱ/RT) = A . x₁. x₂, where A is a constant. The corresponding equation for ln y₁, where y₁ is the activity co-efficient of component 1, is

a.

A . x₂²

b.

Ax₁

c.

Ax₂

d.

Ax₁²

Discuss
Answer: (a).A . x₂²
Q495.
The adiabatic throttling process of a perfect gas is one of constant enthalpy

a.

in which there is a temperature drop.

b.

which is exemplified by a non-steady flow expansion.

c.

which can be performed in a pipe with a constriction.

d.

in which there is an increase in temperature.

Discuss
Answer: (c).which can be performed in a pipe with a constriction.
Q496.
For spontaneous changes in an isolated system (S = entropy)

a.

ds = 0

b.

ds <0

c.

ds > 0

d.

ds = Constant

Discuss
Answer: (c).ds > 0
Q497.
The second law of thermodynamics states that

a.

the energy change of a system undergoing any reversible process is zero.

b.

it is not possible to transfer heat from a lower temperature to a higher temperature.

c.

the total energy of system and surrounding remains the same.

d.

none of the above.

Discuss
Answer: (d).none of the above.
Q498.
Internal energy of an ideal gas

a.

increases with increase in pressure.

b.

decreases with increase in temperature.

c.

is independent of temperature.

d.

none of these.

Discuss
Answer: (d).none of these.
Q499.
A refrigerator works on the principle of __________ law of thermodynamics.

a.

zeroth

b.

first

c.

second

d.

third

Discuss
Answer: (c).second
Q500.
Pick out the wrong statement.

a.

The conversion for a gas phase reaction increases with decrease in pressure, if there is an increase in volume accompanying the reaction.

b.

With increase in temperature, the equilibrium constant increases for an exothermic reaction.

c.

The equilibrium constant of a reaction depends upon temperature only.

d.

The conversion for a gas phase reaction increases with increase in pressure, if there is a decrease in volume accompanying the reaction.

Discuss
Answer: (b).With increase in temperature, the equilibrium constant increases for an exothermic reaction.
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