🏭Chemical Engineering MCQs
Chemical Engineering MCQs
496 MCQs201
The thermodynamic law, PVy = constant, is not applicable in case of______________?
AIdeal compression of air
BFree expansion of an ideal gas
CAdiabatic expansion of steam in a turbine
DAdiabatic compression of a perfect gas
202
If the molar heat capacities (Cp or Cv) of the reactants and products of a chemical reaction are identical, then, with the increase in temperature, the heat of reaction will___________________?
AIncrease
BDecrease
CRemain unaltered
DIncrease or decrease; depends on the particular reaction
203
After throttling, gas temperature___________________?
ADecreases
BIncreases
CRemain same
DMay increase or decrease; depends on the nature of the gas
204
A system in which there is exchange of energy but not of mass, is called a/an ____________ system?
AIsolated
BOpen
CInsulated
DClosed
205
Those solutions in which there is no volume change upon mixing the components in the liquid state and which, when diluted do not undergo any heat change (i.e. heat of dilution is zero), are called ____________ solutions?
AIdeal
BReal
CIsotonic
DNone of these
206
Translational kinetic energy of molecules of an ideal gas is proportional to (where, T = absolute temperature of the gas)__________________?
AT
B√T
CT2
D1/√T
207
In the reaction, H2 +I2 ⇌ 2HI, addition of an inert gas will___________________?
AIncrease the partial pressure of H2
BIncrease the partial pressure of I2
CIncrease the total pressure and hence shift the equilibrium towards the right
DNot affect the equilibrium conditions
208
A solid metallic block weighing 5 kg has an initial temperature of 500°C. 40 kg of water initially at 25°C is contained in a perfectly insulated tank. The metallic block is brought into contact with water. Both of them come to equilibrium. Specific heat of block material is 0.4 kJ.kg-1. K-1. Ignoring the effect of expansion and contraction and also the heat capacity to tank, the total entropy change in kJ.kg-1, K-1 is_________________?
A-1.87
B0
C1.26
D3.91
209
One ton of refrigeration is defined as the heat rate corresponding to melting of one ton of ice in one ________________?
AHour
BDay
CMinute
DSecond
210
4 kg moles of an ideal gas expands in vacuum spontaneously. The work done is_________________?
A4 J
B∞
C0
D8 J