Chemical Engineering MCQs

Page No. 557

In case of a/an ______________ chemical reaction, conversion increases with the rise in temperature?


aReversible exothermic

✖


bIrreversible exothermic

✖


cIrreversible endothermic

✖


dReversible endothermic

✓



The synthesis of proteins and metabolism in biological objects occur in the presence of biocatalyst called_________________?


aA ferment or an enzyme

✖


bHaemoglobin

✖


cFungi

✓


dNone of these

✖


View Answer Fungi

From collision theory, the reaction rate constant is proportional to_________________?


aexp (-E/RT)

✖


bexp (-E/2RT)

✖


c√T

✖


dTm exp (-E/RT)

✓


View Answer Tm exp (-E/RT)

The unit of frequency factor in Arrhenius equation is_______________?


aSame as that of rate constant

✓


bSame as that of activation energy

✖


cDimensionless

✖


dNone of these

✖



The ratio of moles of a reactant converted into the desired product to that converted into unwanted product is called_________________?


aOperational yield

✖


bRelative yield

✖


cSelectivity

✓


dNone of these

✖


View Answer Selectivity

Space time equals the mean residence time__________________?


aWhen the density of the reaction mixture is constant

✓


bFor large diameter tubular reactor

✖


cFor narrow diameter tubular reactor

✖


dFor CSTR

✖



Chemical reaction rate of a component depends upon the______________________?


aComposition of the component only

✖


bTemperature of the system

✖


cPressure of the system

✖


dAll A., B. and C.

✓


View Answer All A., B. and C.

If helium is introduced in a reactor containing O2, SO2 and SO3 at equilibrium, so that total pressure increases while volume and temperature remains constant. In this case the dissociation of SO3 (as per Le Chatelier’s principle)?


aDecreases

✓


bIncreases

✖


cRemains unaltered

✖


dChanges unpredictably

✖


View Answer Decreases

For a first order reaction carried out in a plug flow reactor, the space time is__________________?


a(1/k) ln C0/C

✓


b(1/k) ln C/C0

✖


ck ln C0/C

✖


dk ln C/C0

✖


View Answer (1/k) ln C0/C

With increase in K2/K1 in case of a unimolecular type elementary reactions as shown in the bellow figure, the fractional yield of ‘R’ in mixed reactor (for a given conversion of ‘A’) ?


aDecreases

✓


bIncreases

✖


cIncreases linearly

✖


dRemain same

✖


View Answer Decreases

Goto Page No.

Page 557 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