Explore topic-wise MCQs in Chemical Reaction Engineering.

This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Reaction Engineering knowledge and support exam preparation. Choose a topic below to get started.

1.

The Le- Chatlier principle states that ____

A. No reaction is reversible
B. All reactions are reversible at high temperatures
C. A system experiencing disturbance shifts direction of equilibrium to nullify the change
D. A system experiencing disturbance does not shift direction of equilibrium to nullify the change
Answer» D. A system experiencing disturbance does not shift direction of equilibrium to nullify the change
Discussion
2.

The plot of the function of equilibrium conversion to time for a bimolecular type reversible reaction is ____

A. Exponential
B. Linear
C. Logarithmic
D. Quadratic
Answer» C. Logarithmic
Discussion
3.

Which of the following represents second order bimolecular type reversible reaction?

A. A+B R+S
B. A B
C. A R+S
D. A+B R
Answer» B. A B
Discussion
4.

The plot representing the relation of equilibrium conversion to the reaction time for a unimolecular first order reaction is ____

A. <img alt="Plot for relation of equilibrium conversion to first order reaction - option a" class="alignnone size-full wp-image-284170" height="374" sizes="(max-width: 383px) 100vw, 383px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-temperature-pressure-effects-equilibrium-conversion-q6a.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-temperature-pressure-effects-equilibrium-conversion-q6a.png 383w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-temperature-pressure-effects-equilibrium-conversion-q6a-300x293.png 300w" width="383"/>
B. <img alt="Plot for relation of equilibrium conversion to first order reaction - option b" class="alignnone size-full wp-image-284169" height="376" sizes="(max-width: 372px) 100vw, 372px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-temperature-pressure-effects-equilibrium-conversion-q6b.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-temperature-pressure-effects-equilibrium-conversion-q6b.png 372w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-temperature-pressure-effects-equilibrium-conversion-q6b-297x300.png 297w" width="372"/>
C. <img alt="Plot for relation of equilibrium conversion to first order reaction - option c" class="alignnone size-full wp-image-284168" height="365" sizes="(max-width: 370px) 100vw, 370px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-temperature-pressure-effects-equilibrium-conversion-q6c.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-temperature-pressure-effects-equilibrium-conversion-q6c.png 370w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-temperature-pressure-effects-equilibrium-conversion-q6c-300x296.png 300w" width="370"/>
D. <img alt="Plot for relation of equilibrium conversion to first order reaction - option d" class="alignnone size-full wp-image-284167" height="374" sizes="(max-width: 375px) 100vw, 375px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-temperature-pressure-effects-equilibrium-conversion-q6d.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-temperature-pressure-effects-equilibrium-conversion-q6d.png 375w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-temperature-pressure-effects-equilibrium-conversion-q6d-150x150.png 150w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-temperature-pressure-effects-equilibrium-conversion-q6d-300x300.png 300w" width="375"/>
Answer» B. <img alt="Plot for relation of equilibrium conversion to first order reaction - option b" class="alignnone size-full wp-image-284169" height="376" sizes="(max-width: 372px) 100vw, 372px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-temperature-pressure-effects-equilibrium-conversion-q6b.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-temperature-pressure-effects-equilibrium-conversion-q6b.png 372w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-temperature-pressure-effects-equilibrium-conversion-q6b-297x300.png 297w" width="372"/>
Discussion
5.

For the reaction A R, k1 being the rate constant of forward reaction, k2 being the rate constant of backward reaction and XAe is the equilibrium conversion, k2 is obtained as _____

A. k<sub>2</sub> = k<sub>1</sub> ( frac{(1 X_{Ae})}{( frac{C_{A0}}{C_{R0}} + X_{Ae})} )
B. k<sub>2</sub> = k<sub>1</sub> ( frac{(1 + X_{Ae})}{( frac{C_{A0}}{C_{R0}} + X_{Ae})} )
C. k<sub>2</sub> = k<sub>1</sub> ( frac{(1 X_{Ae})}{( frac{C_{A0}}{C_{R0}} X_{Ae})} )
D. k<sub>2</sub> = k<sub>1</sub> ( frac{(1 X_{Ae})}{( frac{C_{A0}}{C_{R0}} X_{Ae})} )
Answer» B. k<sub>2</sub> = k<sub>1</sub> ( frac{(1 + X_{Ae})}{( frac{C_{A0}}{C_{R0}} + X_{Ae})} )
Discussion
6.

Equilibrium is a state in which ___

A. Rate of forward reaction &gt; Rate of backward reaction
B. Rate of forward reaction = Rate of backward reaction
C. Rate of forward reaction &lt; Rate of backward reaction
D. Rate of forward reaction is independent of the rate of backward reaction
Answer» C. Rate of forward reaction &lt; Rate of backward reaction
Discussion
7.

For the reaction A R, which of the following is the correct expression of CR?

A. C<sub>R</sub> = C<sub>A0</sub>X<sub>A</sub>
B. C<sub>R</sub> = C<sub>A0</sub>X<sub>A</sub>
C. C<sub>R</sub> = C<sub>R0</sub> + C<sub>A0</sub>
D. C<sub>R</sub> = C<sub>R0</sub> + C<sub>A0</sub>X<sub>A</sub>
Answer» E.
Discussion
8.

State true or false.A reversible reaction is the one in which the reaction proceeds simultaneously in both directions.

A. True
B. False
Answer» B. False
Discussion
9.

State true or false.It is possible to achieve a conversion greater than the equilibrium conversion.

A. True
B. False
Answer» C.
Discussion