Search
.Management Sciences
Category: Stoichiometry
In osmosis through a semi-permeable membrane, diffusion of the___________________?
A. Solvent is from low concentration to high concentration region
B. Solvent is from high concentration to low concentration region
C. Solute takes place
D. None of these
The molecules of a liquid which is in equilibrium with its vapor at its boiling point on an average have equal _____________ in the two phases?
A. Potential energy
B. Intermolecular forces
C. Kinetic energy
D. Total energy
Fireclay bricks is not used for lining the_______________?
A. Cupola
B. Gas producer
C. Bottom of hot metal mixer
D. Roof of open hearth furnace
Pick out the wrong unit conversion ?
A. 1 atm. = 760 mm Hg = 29.92 inch Hg = 14.7 psi = 1.013 bar = 1.013 kgf/cm2
B. 1 kPa = 100 bar
C. 1 mm Hg = 1 torr = 133.3 Pa
D. None of these
A vapor that exists above its critical temperature is termed as a _____________ vapor?
A. Saturated
B. Unsaturated
C. Gaseous
D. Sub-cooled
Which property of refractories is the most important for top section of the blast furnace ?
A. Resistance to abrasion
B. Resistance to slag penetration
C. Stability of volume at high temperature
D. Resistance to corrosion by slag
Which of the following holds good for a solution obeying Raoult’s law (i.e., an ideal solution) (where, ΔH = heat of mixing, and ΔV = volume change on mixing) ?
A. ΔH = 1 (+ ve) and Δ V = -ve
B. ΔH = 0
C. ΔV = 0
D. Both B. and C.
Recent Comments