Higher than
Smaller than
Equal to
Either A or B; depends on the system
✅ The correct answer is option B.
Chemical Engineering MCQs
1 BTU/ft³ is approximately equal to __________ kcal/m³.
1
9
4
252
✅ The correct answer is option B.
For an endothermic reaction, the minimum value of energy of activation will be (where, ΔH = enthalpy of the reaction)
Δ H
>ΔH
<ΔH
0
✅ The correct answer is option B.
A solution having a pH value of 5 is less acidic than the one having a pH value of 2 by a factor of
3
100
1000
None of these
✅ The correct answer is option C.
The pressure under which liquid and vapor can co-exit at equilibrium is called the __________ vapor pressure.
Limiting
Real
Saturated
Normal
✅ The correct answer is option C.
Cv for monoatomic gases is equal to(where, R = gas constant)
R
1.5 R
2R
3R
✅ The correct answer is option B.
Na₂SO₄. 10H₂O crystals are formed by cooling 100 Kg of 30% by weight aqueous solution of Na₂SO₄. The final concentration of the solute in the solution is 10%. The weight of crystals is
20
32.2
45.35
58.65
✅ The correct answer is option D.
A vapor whose partial pressure is less than its equilibrium vapor pressure is called the __________ vapor.
Saturated
Superheated
Unsaturated
Dry gaseous
✅ The correct answer is option B.
The amount of Zn (atomic weight = 65) required to form 224 c.c. of H₂ at N.T.P. on treatment with dilute H₂SO₄ will be __________ gm.
0.065
0.65
6.5
65
✅ The correct answer is option B.
Pick out the wrong unit conversion of heat transfer co-efficient.
1 kcal/m².hr.°C = 0.2048 BTU/ft².hr. °F. = 1.163 W/m².°K
1 kcal/m².hr.°K = 1.163 W/m².°C
1 W/m² . °C = 0.1761 BTU/ft².hr.°F
1 BTU/ft².hr.°F = 4.88 kcal/m².hr.°C = 20.44 kJ/m².hr°C = 5.678 W/m².°C
✅ The correct answer is option B.