🏭Chemical Engineering MCQs
Chemical Engineering MCQs
496 MCQs121
The total change in the enthalpy of a system is independent of the _______________________?
ANumber of intermediate chemical reactions involved
BPressure and temperature
CState of combination and aggregation in the beginning and at the end of the reaction
DNone of these
122
Which of the following behaves most closely like an ideal gas ?
AHe
BN2
CO2
DH2
123
For a multi-component system, the term chemical potential is equivalent to the ___________________?
AMolal concentration difference
BMolar free energy
CPartial molar free energy
DMolar free energy change
124
A refrigeration cycle is a reversed heat engine. Which of the following has the maximum value of the co-efficient of performance (COP) for a given refrigeration effect ?
AVapor compression cycle using expansion valve
BAir refrigeration cycle
CVapor compression cycle using expansion engine
DCarnot refrigeration cycle
125
Fugacity co-efficient of a substance is the ratio of its fugacity to__________________?
AMole fraction
BActivity
CPressure
DActivity co-efficient
126
As the entropy of the universe is increasing, day by day, the work producing capacity of a heat engine is_________________?
ANot changed
BDecreasing
CIncreasing
DData sufficient, can’t be predicted
127
The standard state of a gas (at a given temperature) is the state in which fugacity is equal to__________________?
Anor B
BActivity
CBoth
DNeither
128
The following heat engine produces power of 100,000 kW. The heat engine operates between 800 K and 300 K. It has a thermal efficiency equal to 50% of that of the Carnot engine for the same temperature. The rate at which heat is absorbed from the hot reservoir is____________________?
A100,000 kW
B160,000 kW
C200,000 kW
D320,000 kW
129
Joule-Thomson experiment is__________________?
AIsobaric
B&
CIsenthalpic
DBoth
130
Degree of freedom of a system consisting of a gaseous mixture of H2 and NH3 will be_________________?
A0
B1
C2
D3