๐ญChemical Engineering MCQs
Chemical Engineering MCQs
496 MCQs341
Heat of reaction is not influenced by__________________?
AThe route/method through which final products are obtained
BThe physical state (e.g., solid, liquid or gaseous) of reactants and products
CWhether the reaction is carried out at constant temperature or constant pressure
DNone of these
342
A โlimiting reactantโ is the one, which decides the ____________ in the chemical reaction?
AEquilibrium constant
BConversion
CRate constant
DNone of these
343
At a constant volume, for a fixed number of moles of a gas, the pressure of the gas increases with rise of temperature due to___________________?
ADecrease in mean free path
BIncreased collision rate among molecules
CIncrease in molecular attraction
DIncrease in average molecular speed
344
1 torr is equivalent to_________________?
A1 mm Hg
B1 Pascal
C1 atm
D1 mm wc
345
An aqueous solution of 2.45% by weight H2SO4 has a specific gravity of 1.011. The composition expressed in normality is______________?
A0.2500
B0.2528
C0.5000
D0.5055
346
The density of a gas at N.T.P.is โฯโ. Keeping the pressure constant (i.e. 760 mm Hg), the 3 density of the gas will become ยพ 0.75 ฯ at a temperature of ____________ ยฐK?
A273ยฐ
B300ยฐ
C400ยฐ
D373ยฐ
347
A long cylinder and a sphere both of 5 cms diameter are made from the same porous material. The flat ends of cylinder are sealed. Both the cylinder and sphere are saturated with the same solution of sodium chloride. Later both the objects are immersed for a short and equal interval of time in a large tank of water which is well agitated. The fraction of salt remaining in the cylinder and the sphere are Xc and Xs respectively. Which of the following statement is correct ?
AXc > Xs
BXc = Xs
CXc
DXc greater/less than Xs depending on the length of the cylinder
348
The temperature at which a real gas obeys Boyleโs law is termed as the__________________?
ATriple point
BBoyleโs temperature
CEutectic point
DInversion temperature
349
Elements in a periodic table are arranged in order of their__________________?
AAtomic number
BMass number
CAtomic weight
DMetallic characteristics
350
The most convenient way of expressing solution concentration is in terms of___________________?
AMole fraction
BNormality
CMolality
DMolarity