Chemical Engineering MCQs

Page No. 566

6 gm of carbon is burnt with an amount of air containing 18 gm oxygen. The product contains 16.5 gms CO2 and 2.8 gms CO besides other constituents. What is the degree of conversion on the basis of disappearance of limiting reactant ?


a100%

✖


b95%

✓


c75%

✖


d20%

✖


View Answer 95%

A first order reaction requires two equal sized CSTR. The conversion is____________________?


aLess when they are connected in series

✖


bMore when they are connected in series

✓


cMore when they are connected in parallel

✖


dSame whether they are connected in series or in parallel

✖



The optimum performance for reactors operating in parallel is obtained when the feed stream is distributed in such a way, that the_________________?


aSpace time for each parallel line is same

✓


bSpace time for parallel lines is different

✖


cLarger reactors have more space time compared to smaller ones

✖


dNone of these

✖



What is the order of a chemical reaction of the bellow figure, if the rate of formation of ‘C’, increases by a factor of 2.82 on doubling the concentration of ‘A’ and increases by a factor of 9 on trebling the concentration of ‘B’ ?


a7/2

✓


b7/4

✖


c5/2

✖


d5/4

✖


View Answer 7/2

Higher free energy of activation of a chemical reaction (at a given temperature) implies ____________________?


aSlower rate of reaction

✓


bHigher rate of reaction

✖


cHigher equilibrium conversion

✖


dBoth B. and C.

✖



As the chemical reaction proceeds, the rate of reaction ___________________?


aIncreases

✖


bDecreases

✓


cRemain same

✖


dMay increase or decrease depending on the type of reaction

✖


View Answer Decreases

Integral method for analysing the kinetic data is used _____________________?


aWhen the data are scattered

✖


bFor testing specific mechanisms with simple rate expressions

✖


cBoth A. and B.

✓


dNone of these

✖


View Answer Both A. and B.

A pulse tracer is introduced in an ideal CSTR (with a mean residence time I) at time, t = 0. The time taken for the exit concentration of the tracer to reach half of its initial value will be__________________?


a2η

✓


b0.5η

✖


cη/0.693

✖


d0.693η

✖


View Answer 2η

Inversion of cane sugar is an example of ______________________?


aUnimolecular reaction with first order

✖


bBimolecular reaction with second order

✖


cBimolecular reaction with first order

✓


dUnimolecular reaction with second order

✖



A typical example of an exothermic reversible reaction conducted at high pressure in industry is____________________?


aDehydration of ethanol

✓


bMethanol synthesis

✖


cReformation of methane

✖


dPolymerisation of ethylene

✖



Goto Page No.

Page 566 of 843

Alphabetical MCQs Categories
—

Here below You find all kind of categories of MCQs in alphabetical order.


"Comprehensive Collection of MCQs: Alphabetically Organized by Subject"
—

"Discover an extensive collection of multiple-choice questions (MCQs) neatly categorized by subject from A to Z. This resource is designed for anyone eager to explore various topics in a straightforward and organized manner. Whether you're a student preparing for exams, an educator seeking supplementary materials, or simply curious about different subjects, this compilation offers a convenient way to learn and assess your knowledge. With questions arranged alphabetically, navigation is effortless, allowing you to delve into subjects of interest at your own pace. Engage, learn, and expand your understanding with this accessible and comprehensive repository of MCQs!"


BolPakistan

bolpakistan.com.pk includes Job Mcqs and Pak Mcqs is the Top Largest Mcqs Forum in World, in which you can read Mcqs of All Subjects, PPSC test preparation, FPSC, NTS and PPSC PAST PAPERS, PPSC PAST MCQS. A Collection of Repeated MCQs for JOBs seekers.

Copyright © 2024, Designed & Developed by BolPakistan