🏭Chemical Engineering MCQs
Chemical Engineering MCQs
496 MCQs181
The amount of heat required to decompose a compound into its elements is _____________ the heat of formation of that compound from its elements?
ALess than
BMore than
CSame as
DNot related to
182
Gases are cooled in Joule-Thomson expansion, when it is _____________ inversion temperature?
ABelow
Bor
CAbove
DEither
183
Number of components (C), phase (P) and degrees of freedom (F) are related by Gibbs phase rule as________________?
AP + F – C = 2
BC = P – F + 2
CF = C – P – 2
DP = F – C – 2
184
Entropy change in case of reversible adiabatic process is________________?
AMinimum
BZero
CMaximum
DIndeterminate
185
Fundamental principle of refrigeration is based on the ______________ law of thermodynamics?
AZeroth
BFirst
CSecond
DThird
186
For a constant volume process_________________?
AdE = CpdT
BdE = CvdT
CdQ = dE + pdV
DdW = pdV
187
At absolute zero temperature, the _____________ of the gas is zero?
APressure
BVolume
CMass
DNone of these
188
Joule-Thomson Co-efficient at any point on the inversion curve is___________________?
A∞
B+ve
C0
D-ve
189
No work is done by the system, when a reaction occurs at constant__________________?
AVolume
BTemperature
CPressure
DNone of these
190
If atmospheric temperature and dew point are nearly equal, then the relative humidity is_______________?
AZero
B50%
CAlmost 100%
Dunpredictable