Chemical Engineering MCQs

Page No. 162

Which of the following equations is obtained on combining 1st and 2nd law of thermodynamics, for a system of constant mass ?


adE = Tds – PdV


bdQ = CvdT + PdV


cdQ = CpdT + Vdp


dTds = dE – PdV


View Answer dE = Tds – PdV

The internal energy of a gas obeying P (V – b) RT (where, b is a positive constant and has a constant Cv), depends upon its________________?


aPressure


bVolume


cTemperature


dAll A, B. & C


View Answer Temperature

If the pressure on 100 c.c. of air is halved, then its volume (at the same temperature) would be ______________ c.c?


a100


b50


c205


d200


View Answer 200

All gases above its inversion temperature, in a throttling process will show__________________?


aA heating effect


bNo change in temperature


cA cooling effect


d Either A. or (C)


View Answer A heating effect

With increase in temperature, the internal energy of a substance___________________?


aIncreases


b Decreases


cRemains unchanged


dMay increase or decrease; depends on the substance


View Answer Increases

(∂H/∂T)P is the mathematical expression for____________________?


aCV


bEntropy change


cGibbs free energy


dNone of these


View Answer None of these

Which of the following is not an equation of state ?


aBertholet equation


bClausius-Clapeyron equation


cBeattie-Bridgeman equation


dNone of these



The melting point of paraffin wax (which contracts on solidification) _______________ with pressure rise?


a Increases


bDecreases


cRemains unchanged


dDecreases linearly


View Answer Increases

In a P-V diagram (for an ideal gas), an isothermal curve will coincide within adiabatic curve (through a point), when___________________?


aCp < Cv


bCp = Cv


cCp > Cv


dC ≥ Cv


View Answer Cp = Cv

The internal energy of an ideal gas does not change in a reversible _____________ process?


aIsothermal


bAdiabatic


cIsobaric


dIsometric


View Answer Isothermal

Goto Page No.

Page 162 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