The value of gas constant ‘R’ is ______________ kcal/kg.mole.°C?
The value of gas constant ‘R’ is ______________ kcal/kg.mole.°C?
A. 2.79
B. 1.987
C. 3.99
D. None of these
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Which of the following gases is the most soluble in water ?
Which of the following gases is the most soluble in water ?A. NH3
B. CO2
C. H2S
D. CH4“The equilibrium value of the mole fraction of the gas dissolved in a liquid is directly proportional to the partial pressure of that gas above the liquid surface”. This statement pertaining to the solubility of gases in liquid is the ______________ law?
“The equilibrium value of the mole fraction of the gas dissolved in a liquid is directly proportional to the partial pressure of that gas above the liquid surface”. This statement pertaining to the solubility of gases in liquid is the ______________ law?A. Raoult’s
B. Henry’s
C. Amagat’s
D. None of theseOn addition of 1 c.c. of dilute hydrochloric acid (1% concentration) to 80 c.c. of a buffer solution of pH = 4, the pH of the solution becomes_________________?
On addition of 1 c.c. of dilute hydrochloric acid (1% concentration) to 80 c.c. of a buffer solution of pH = 4, the pH of the solution becomes_________________?A. 1
B. 8
C. 4
D. 2Unrestrained expansion of an ideal gas does not result in its cooling due to the reason that the gas molecules ____________________?
Unrestrained expansion of an ideal gas does not result in its cooling due to the reason that the gas molecules ____________________?A. Do not lose energy on collision
B. Are above the inversion temperature
C. Do not exert attractive force on each other
D. Do work equal to loss in kinetic energyTwo solutions A1 and A2 have pH value of 2 and 6 respectively. It implies that the solution_____________________?
Two solutions A1 and A2 have pH value of 2 and 6 respectively. It implies that the solution_____________________?A. A2 is more alkaline than solution A2
B. A1 is highly acidic
C. A1 is very slightly acidic
D. Both A. & C.Lower wall courses of soaking pits are made of _____________ bricks to avoid the action of molten slag & scale?
Lower wall courses of soaking pits are made of _____________ bricks to avoid the action of molten slag & scale?A. Chrome or magnesite
B. Silicon carbide
C. Silica
D. Low duty fireclay