Raoult’s
Henry’s
Amgat’s
None of these
✅ The correct answer is option B.
Statiometery MCQs
12. Which of the following is not a unit of kinematic viscosity?
Poise
Stoke
Cm²/second
None of these
✅ The correct answer is option A.
13. A gas at 0°C is cooled at constant pressure until its volume becomes half the original volume. The temperature of the gas at this state will be
-136.5°C
– 136.5°K
-273°C
0°K
✅ The correct answer is option A.
14. The activity co-efficient of a solution, which accounts for the departure of liquid phase from ideal solution behaviour
Measures the elevation in boiling point
Is not dependent on the temperature
Is a function of the liquid phase composition
Measures the depression in freezing point
✅ The correct answer is option C.
15. 1 Pascal (unit of pressure) is equal to __________ N/m².
10
1
0.1
1000
✅ The correct answer is option B.
16. __________ fuels require the maximum percentage of ‘excess air’ for complete combustion.
Solid
Liquid
Gaseous
Nuclear
✅ The correct answer is option A.
17. Enthalpy change resulting, when unit mass of solid is wetted with sufficient liquid, so that further addition of liquid produces no additional thermal effect, is called the heat of
Mixing
Adsorption
Wetting
Complete wetting
✅ The correct answer is option D.
18. Which of the following ratios defines the recycle ratio in a chemical process?
Gross feed stream/recycle feed stream
Recycle stream/fresh feed stream
Recycle stream/gross feed stream
None of these
✅ The correct answer is option B.
19. At higher temperature, molal heat capacities of most of the gases (at constant pressure) __________ with increase in temperature.
Increases
Decreases
Remains unchanged
Increases linearly
✅ The correct answer is option A.
20. Cp – Cv, for an ideal gas is equal to
R
R/2
2R
3R
✅ The correct answer is option A.