Engineering Questions with Answers - Multiple Choice Questions

Separation Processes MCQ’s – Ideal gas and Ideal Liquid-Solution Model

1 - Question

The ideal equations apply only till what pressure?
a) 305kPa
b) 315kPa
c) 325kPa
d) 345kPa
Explanation: The ideal equation can be applied only till 345kPa for components of similar molecular structure.

2 - Question

How is the molar volume calculated?
a) RT/V
b) RT/n
c) RT/P
d) RT/np
Explanation: Using ideal gas equation, the molar volume is calculated.

3 - Question

If the temperature of vapor is 400K and pressure is 20000 Pascal, what is the molar volume?
a) 0.15m3
b) 0.16 m3
c) 10 m3
d) 20 m3
Explanation: ϑv = RT/P.

4 - Question

Which equation is used to calculate liquid molar volume?
a) M/dL
b) M/P
c) M/RT
d) RT/P
Explanation: The equation M/dL is used.

5 - Question

Which equation is used for non-ideal solutions at ambient pressure?
a) K i = ϕ iL / ϕ iV
b) K i = γ iL ϕiL/ ϕ iV
c) K i = P i s /P
d) K i =γ iL P i s /P
Explanation: Modified Roult’s law is used here.

6 - Question

If the temperature of vapor is 300K and pressure is 1atm , what is molar volume?
a) 0.04m3
b) 0.025 m3
c) 0.113 m3
d) 0.456 m3
Explanation: ϑv = RT/P.

7 - Question

If the temperature of vapor is 100 oC and pressure is 2 atm, what is molar volume?
a) 0.23 m3
b) 0.34 m3
c) 0.015 m3
d) 0.234 m3