Explore topic-wise MCQs in Chemical Reaction Engineering.

This section includes 10 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 F(t) curves of CSTR and PFR respectively are ____

A. <img alt="The F(t) curves of CSTR &amp; PFR - option a" class="alignnone size-full wp-image-284209" height="142" sizes="(max-width: 350px) 100vw, 350px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q10a.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q10a.png 350w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q10a-300x122.png 300w" width="350"/>
B. <img alt="The F(t) curves of CSTR &amp; PFR - option b" class="alignnone size-full wp-image-284208" height="141" sizes="(max-width: 350px) 100vw, 350px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q10b.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q10b.png 350w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q10b-300x121.png 300w" width="350"/>
C. <img alt="The F(t) curves of CSTR &amp; PFR - option c" class="alignnone size-full wp-image-284207" height="168" sizes="(max-width: 354px) 100vw, 354px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q10c.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q10c.png 354w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q10c-300x142.png 300w" width="354"/>
D. <img alt="The F(t) curves of CSTR &amp; PFR - option d" class="alignnone size-full wp-image-284206" height="167" sizes="(max-width: 360px) 100vw, 360px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q10d.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q10d.png 360w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q10d-300x139.png 300w" width="360"/>
Answer» D. <img alt="The F(t) curves of CSTR &amp; PFR - option d" class="alignnone size-full wp-image-284206" height="167" sizes="(max-width: 360px) 100vw, 360px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q10d.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q10d.png 360w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q10d-300x139.png 300w" width="360"/>
Discussion
2.

The area under the curve of exit age distribution integrated between time, t = 0 and t = is ____

A. 0
B. 2
C. Unity
D. Infinite
Answer» D. Infinite
Discussion
3.

The average residence time obtained from exit age distribution is ____

A. = t<sup>2</sup> tC(t)dt
B. = ( int_0^ )E(t)dt
C. = ( frac{ tE(t)dt}{ E(t)dt} )
D. = ( frac{ tC(t)dt}{ dt} )
Answer» C. = ( frac{ tE(t)dt}{ E(t)dt} )
Discussion
4.

The average residence time obtained from cumulative age distribution is ____

A. = ( frac{ tC(t)dt}{ C(t)dt} )
B. = tC(t)dt
C. = ( frac{ tC(t)dt}{ dt} )
D. = ( frac{ C(t)dt}{ tC(t)dt} )
Answer» B. = tC(t)dt
Discussion
5.

Which of the following correctly represents the exit age distribution of a PFR?

A. <img alt="Exit age distribution of a PFR - option a" class="alignnone size-full wp-image-284200" height="296" sizes="(max-width: 368px) 100vw, 368px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q6a.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q6a.png 368w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q6a-300x241.png 300w" width="368"/>
B. <img alt="Exit age distribution of a PFR - option b" class="alignnone size-full wp-image-284199" height="295" sizes="(max-width: 369px) 100vw, 369px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q6b.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q6b.png 369w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q6b-300x240.png 300w" width="369"/>
C. <img alt="Exit age distribution of a PFR - option c" class="alignnone size-full wp-image-284198" height="289" sizes="(max-width: 366px) 100vw, 366px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q6c.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q6c.png 366w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q6c-300x237.png 300w" width="366"/>
D. <img alt="Exit age distribution of a PFR - option d" class="alignnone size-full wp-image-284197" height="292" sizes="(max-width: 361px) 100vw, 361px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q6d.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q6d.png 361w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q6d-300x243.png 300w" width="361"/>
Answer» E.
Discussion
6.

Which of the following correctly represents the exit age distribution of a CSTR?

A. <img alt="Exit age distribution of a CSTR - option a" class="alignnone size-full wp-image-284204" height="330" sizes="(max-width: 430px) 100vw, 430px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q5a.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q5a.png 430w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q5a-300x230.png 300w" width="430"/>
B. <img alt="Exit age distribution of a CSTR - option b" class="alignnone size-full wp-image-284203" height="341" sizes="(max-width: 471px) 100vw, 471px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q5b.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q5b.png 471w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q5b-300x217.png 300w" width="471"/>
C. <img alt="Exit age distribution of a CSTR - option c" class="alignnone size-full wp-image-284202" height="338" sizes="(max-width: 424px) 100vw, 424px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q5c.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q5c.png 424w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q5c-300x239.png 300w" width="424"/>
D. <img alt="Exit age distribution of a CSTR - option d" class="alignnone size-full wp-image-284201" height="334" sizes="(max-width: 397px) 100vw, 397px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q5d.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q5d.png 397w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q5d-300x252.png 300w" width="397"/>
Answer» C. <img alt="Exit age distribution of a CSTR - option c" class="alignnone size-full wp-image-284202" height="338" sizes="(max-width: 424px) 100vw, 424px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q5c.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q5c.png 424w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-non-ideal-flow-basics-properties-c-f-e-curves-1-q5c-300x239.png 300w" width="424"/>
Discussion
7.

Exit age distribution and F(t) are related as ____

A. ( frac{dF}{dt} ) = E
B. ( frac{dE}{dt} ) = F
C. F t = E
D. E V = F
Answer» B. ( frac{dE}{dt} ) = F
Discussion
8.

State true or false.
The average residence time () of a fluid element is given by = tF(t)dt, integrated between time t = 0 and t = .

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

State true or false.
The time spent by different fluid elements in the reactor is measured by a technique called the stimulus response technique.

A. False
B. True
Answer» C.
Discussion
10.

If M is the total amount of tracer injected and v is the volumetric flow rate of the effluent, then what is the Relationship between cumulative and exit age distribution?

A. E = ( frac{C}{( frac{M}{v})} )
B. E = ( frac{M}{(v)} )
C. E = ( frac{C}{(Mv)} )
D. E = ( frac{MC}{(v)} )
Answer» B. E = ( frac{M}{(v)} )
Discussion