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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.

If the rate of a chemical reaction becomes slower at a given temperature, then the__________________?

A Initial concentration of the reactants remains constant

B Free energy of activation is lower

C Entropy changes

D Free energy of activation is higher

Review Detailed Answer

Correct Answer: Free energy of activation is higher

For an isothermal variable volume batch reactor, the following relation is applicable for a first order irreversible reaction?

A XA = k . t

B [CA0/(1 + εA XA)] (dXA/dt) = k

C -ln(1 – XA) = kt

D εA . ln (1 – XA) = k . t

Review Detailed Answer

Correct Answer: [CA0/(1 + εA XA)] (dXA/dt) = k

Which of the following is a characteristic of an ideal plug flow reactor ?

A Axial dispersion

B Flat velocity profile

C Uniform mixing

D None of these

Review Detailed Answer

Correct Answer: Flat velocity profile

What is the order of a chemical reaction in which doubling the initial concentration of the reactants doubles the half life time of the reaction ?

A 0

B 1

C 2

D 3

Review Detailed Answer

Correct Answer: 0

Collision theory gives the rate constant for bimolecular reaction as___________________?

A K α √T.e-E/RT

B K α eE/RT

C K α e-E/RT

D None of these

Review Detailed Answer

Correct Answer: K α e-E/RT

For an ideal gas mixture undergoing a reversible gaseous phase chemical reaction, the equilibrium constant ?

A Is independent of pressure

B Increases with pressure

C Decreases with pressure

D Increases /decreases with pressure depending on the stoichiometric co-efficients of the

Review Detailed Answer

Correct Answer: Increases with pressure

The order of the chemical reaction as shown in the bellow figure, whose rate equation is given as -rA = KCA_________________?

A 0

B 1

C 2

D 3

Review Detailed Answer

Correct Answer: 3

Maximum equilibrium conversion for endothermic reaction is obtained at the ______________ temperature?

A Highest possible

B Lowest possible

C Intermediate

D Room

Review Detailed Answer

Correct Answer: Highest possible

The equilibrium constant for the reversible reaction as shown in the bellow figure, is affected by the__________________?

A Temperature of the system

B Presence or absence of inerts

C Pressure of the system

D Kinetics of the reaction

Review Detailed Answer

Correct Answer: Pressure of the system

. In the converter of the contact process for the manufacture of H2SO4 the equilibrium conversion of SO2 (i) with increase in temperature and (ii) with increase in the mole ratio of SO2 to air?

A (i) increases (ii) decreases

B (i) decreases (ii) increases

C (i) increases (ii) increases

D (i) decreases (ii) decreases

Review Detailed Answer

Correct Answer: (i) decreases (ii) increases

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

If the rate of a chemical reaction becomes slower at a given temperature, then the__________________?

For an isothermal variable volume batch reactor, the following relation is applicable for a first order irreversible reaction?

Which of the following is a characteristic of an ideal plug flow reactor ?

What is the order of a chemical reaction in which doubling the initial concentration of the reactants doubles the half life time of the reaction ?

Collision theory gives the rate constant for bimolecular reaction as___________________?

For an ideal gas mixture undergoing a reversible gaseous phase chemical reaction, the equilibrium constant ?

The order of the chemical reaction as shown in the bellow figure, whose rate equation is given as -rA = KCA_________________?

Maximum equilibrium conversion for endothermic reaction is obtained at the ______________ temperature?

The equilibrium constant for the reversible reaction as shown in the bellow figure, is affected by the__________________?

. In the converter of the contact process for the manufacture of H2SO4 the equilibrium conversion of SO2 (i) with increase in temperature and (ii) with increase in the mole ratio of SO2 to air?

Contact Info

Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

If the rate of a chemical reaction becomes slower at a given temperature, then the__________________?

For an isothermal variable volume batch reactor, the following relation is applicable for a first order irreversible reaction?

Which of the following is a characteristic of an ideal plug flow reactor ?

What is the order of a chemical reaction in which doubling the initial concentration of the reactants doubles the half life time of the reaction ?

Collision theory gives the rate constant for bimolecular reaction as___________________?

For an ideal gas mixture undergoing a reversible gaseous phase chemical reaction, the equilibrium constant ?

The order of the chemical reaction as shown in the bellow figure, whose rate equation is given as -rA = KCA_________________?

Maximum equilibrium conversion for endothermic reaction is obtained at the ______________ temperature?

The equilibrium constant for the reversible reaction as shown in the bellow figure, is affected by the__________________?

. In the converter of the contact process for the manufacture of H2SO4 the equilibrium conversion of SO2__________ (i) __________ with increase in temperature and __________ (ii) __________ with increase in the mole ratio of SO2 to air?

. In the converter of the contact process for the manufacture of H2SO4 the equilibrium conversion of SO2 (i) with increase in temperature and (ii) with increase in the mole ratio of SO2 to air?