A. Decrease in mean free path
B. Increased collision rate among molecules
C. Increase in molecular attraction
D. Increase in average molecular speed
CHEMICAL ENGINEERING
1 torr is equivalent to_________________?
A. 1 mm Hg
B. 1 Pascal
C. 1 atm
D. 1 mm wc
An aqueous solution of 2.45% by weight H2SO4 has a specific gravity of 1.011. The composition expressed in normality is______________?
A. 0.2500
B. 0.2528
C. 0.5000
D. 0.5055
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 ?
A. Xc > Xs
B. Xc = Xs
C. Xc < Xs
D. Xc greater/less than Xs depending on the length of the cylinder
The temperature at which a real gas obeys Boyle’s law is termed as the__________________?
A. Triple point
B. Boyle’s temperature
C. Eutectic point
D. Inversion temperature
Recycling in a chemical process facilitates___________________?
A. Increased yield
B. Enrichment of product
C. Heat conservation
D. All A., B. & C.
Internal energy is independent of the ____________ for an ideal gas?
A. Pressure
B. Volume
C. Both A. & B.
D. Neither A. nor B.
“The total volume occupied by a gaseous mixture is equal to the sum of the pure component volumes”. This is the _____________ law?
A. Dalton’s
B. Amagat’s
C. Gay-Lussac’s
D. Avogadro’s
Which of the following gravity scales is used exclusively for liquids heavier than water ?
A. Baume scale
B. Twaddell scale
C. API scale
D. None of these