πChemical Engineering MCQs
Chemical Engineering MCQs
496 MCQs251
pH value of H2SO4 (5% concentration) is__________________?
A5
B7
C> 7
252
Raoultβs law is not applicable to the___________________?
ASolutes which dissociate or associate in the particular solution
B&
CD. Solutions containing non-volatile solute
253
During the phase transition, _______________ changes?
APressure
Band C
CTemperature
DAll A ,
254
Clausius-Clapeyron equation is applicable to _____________ equilibrium processes?
ASolid-vapor
Band C
CLiquid-vapor
DAll A,
255
Which of the following gravity scales is used exclusively for liquids heavier than water ?
ABaume scale
BTwaddell scale
CAPI scale
DNone of these
256
1m3 is approximately equal to_________________?
A28 litres
B35 ft3
C4.5 litres
D4.5 ft3
257
In case of a solution (not of a solid in a liquid), whose total volume is more than the sum of volumes of its components in their pure states, solubility is__________________?
AIndependent of the temperature
BIncreased with the increase in pressure
CDecreased with the increase in pressure
DUnchanged by the pressure change
258
The forces causing the vaporisation of liquid are derived from the Kinetic energy of translation of its molecules. The heat of vaporisation_________________?
AIncreases with pressure rise
B&
CBecomes zero at the critical point
DBoth
259
The first law of thermodynamics is a restatement of the law of conservation of_________________?
AMass
BEnergy
CMomentum
DNone of these
260
________________ decreases during adiabatic throttling of a perfect gas?
AEntropy
BTemperature
CEnthalpy
DPressure