350
485
140
345
✅ The correct answer is option A.
Chemical Engineering MCQs
Solutions having the same osmotic pressure are called __________ solutions.
Dilute
Ideal
Isotonic
Saturated
✅ The correct answer is option C.
The atomic weight of helium is 4 times that of hydrogen. Its diffusion rate as compared to hydrogen will be __________ times.
1-Feb
4
√2
1-Apr
✅ The correct answer is option C.
The relative humidity of air decreases in-spite of an increase in the absolute humidity, when the
Temperature rises
Pressure rises
Temperature falls
Pressure falls
✅ The correct answer is option A.
A ‘limiting reactant’ is the one, which decides the __________ in the chemical reacation.
Equilibrium constant
Conversion
Rate constant
None of these
✅ The correct answer is option B.
In general, the specific heats of aqueous solutions __________ with increase in the concentration of the solute.
Increase
Decrease
Remain unchanged
None of these
✅ The correct answer is option B.
As per Kirchoff s equation, the heat of reaction is affected by the
Pressure
Volume
Temperature
Molecularity
✅ The correct answer is option C.
When an unsaturated air-water mixture is heated at constant pressure, then
The partial pressure of water vapour increases
The specific humidity decreases
The relative humidity increases
The relative humidity decreases
✅ The correct answer is option D.
°API gravity of water at N.T.P. is about
0
1
10
100
✅ The correct answer is option C.
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 ) ?
ΔH = 1 (+ ve)and Δ V = -ve
ΔH = 0
ΔV = 0
Both B and C
✅ The correct answer is option D.