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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.

In a reversible process__________________?

A Tds = dE + dW

B dE – dW = Tds

C dW – dE = Tds

D Tds – dW + dE >0

Review Detailed Answer

Correct Answer: Tds = dE + dW

The number of degrees of freedom at the triple point of water is__________________?

A 0

B 1

C 2

D 3

Review Detailed Answer

Correct Answer: 0

The chemical potential for a pure substance is ____________ its partial molal free energy?

A More than

B Less than

C Equal to

D Not related to

Review Detailed Answer

Correct Answer: Equal to

A closed system is cooled reversibly from 100°C to 50°C. If no work is done on the system________________?

A its internal energy (U) decreases and its entropy (S) increases

B U and S both decreases

C U decreases but S is constant

D U is constant but S decreases

Review Detailed Answer

Correct Answer: U and S both decreases

Enthalpy ‘H’ is defined as___________________?

A H = E – PV

B H = F – TS

C H – E = PV

D None of these

Review Detailed Answer

Correct Answer: H – E = PV

The Joule-Thomson co-efficient is defined as (∂T/∂P)H. Its value at the inversion point is__________________?

A ∞

B 1

C 0

D -ve

Review Detailed Answer

Correct Answer: 0

When a gas in a vessel expands, its internal energy decreases. The process involved is________________?

A Reversible

B Irreversible

C Isothermal

D Adiabatic

Review Detailed Answer

Correct Answer: Reversible

For a single component two phase mixture, the number of independent variable properties are_________________?

A Two

B One

C Zero

D Three

Review Detailed Answer

Correct Answer: One

Change of heat content when one mole of compound is burnt in oxygen at constant pressure is called the__________________?

A Calorific value

B Heat of reaction

C Heat of combustion

D Heat of formation

Review Detailed Answer

Correct Answer: Heat of combustion

What is the value of ln y (where y = activity co-efficient) for ideal gases ?

A Zero

B Unity

C Infinity

D Negative

Review Detailed Answer

Correct Answer: Zero

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

In a reversible process__________________?

The number of degrees of freedom at the triple point of water is__________________?

The chemical potential for a pure substance is ____________ its partial molal free energy?

A closed system is cooled reversibly from 100°C to 50°C. If no work is done on the system________________?

Enthalpy ‘H’ is defined as___________________?

The Joule-Thomson co-efficient is defined as (∂T/∂P)H. Its value at the inversion point is__________________?

When a gas in a vessel expands, its internal energy decreases. The process involved is________________?

For a single component two phase mixture, the number of independent variable properties are_________________?

Change of heat content when one mole of compound is burnt in oxygen at constant pressure is called the__________________?

What is the value of ln y (where y = activity co-efficient) for ideal gases ?