35 + Mcqs in Liquid Systems and Vapor-Liquid Equilibria in Chemical Engineering Page 1 McqOptions

1.	A reaction has produced 5 moles of water vapor and 10 liter bone dry air at 27oC and 15 atm, what is the humidity?
A.	0.24
B.	0.49
C.	0.83
D.	1.06
Answer» D. 1.06

Discussion

2.	Which of the following is equal to the product of humidity and mass of dry gas?
A.	Moles of water vapor
B.	Mass of water vapor
C.	Mass of gas vapor
D.	None of the mentioned
Answer» C. Mass of gas vapor

Discussion

3.	What is the molal humidity of a gas with partial pressure with vapor 1 mm Hg and partial pressure without vapor 1 atm?
A.	0.9
B.	1.31
C.	2.14
D.	2.88
Answer» C. 2.14

Discussion

4.	A reaction has produced 1 mole of water vapor and 5 liter of bone dry air at 27oC and 5 atm, what is the humidity?
A.	1
B.	1.04
C.	1.15
D.	1.69
Answer» B. 1.04

Discussion

5.	What is the humidity, if the mass of dry gas is 10 Kg and mass of water vapor is 5 Kg?
A.	0.25
B.	0.5
C.	1
D.	2
Answer» C. 1

Discussion

6.	A reaction has produced 1.5 moles of water and 2 liter of bone dry air at 27oC and 25 atm, what is the humidity?
A.	0.05
B.	0.25
C.	0.5
D.	0.75
Answer» E.

Discussion

7.	A reaction has produced 0.4 mole of water vapor and 1 liter of bone dry air at 27oC and 5 atm, what is the humidity?
A.	0.85
B.	1.43
C.	1.78
D.	2
Answer» E.

Discussion

8.	1.5 mole glucose reacts completely with excess air, if 5 liter of bone dry air is produced at 27oC and 30 atm, what is the humidity?
A.	0.5
B.	1.5
C.	2
D.	3
Answer» C. 2

Discussion

9.	What is the degrees of freedom of a system with a mixture of ice, water and neon?
A.	1
B.	2
C.	3
D.	4
Answer» D. 4

Discussion

10.	What is the partial pressure of 20% gas in a system with vapor pressure 10 mm Hg?
A.	2 mm Hg
B.	10 mm Hg
C.	50 mm Hg
D.	100 mm Hg
Answer» B. 10 mm Hg

Discussion

11.	What is the degrees of freedom of a system with a mixture of copper pyrites, liquid benzene and helium?
A.	1
B.	2
C.	3
D.	4
Answer» C. 3

Discussion

12.	What is the degree of freedom of a gas mixture composed of CO2, SO2, SO3, CH4, H2CO3?
A.	2
B.	3
C.	5
D.	7
Answer» D. 7

Discussion

13.	What is the degree of freedom of a gas mixture composed of O2, H2O and H2O2?
A.	1
B.	2
C.	3
D.	4
Answer» D. 4

Discussion

14.	What is the degree of freedom of a mixture composed Liquid H2O, solid Br2 and gaseous CO2, NO2?
A.	1
B.	2
C.	3
D.	4
Answer» D. 4

Discussion

15.	What is the fraction of gas in a system with partial pressure 2 mm Hg and vapor pressure 5 mm Hg?
A.	0.4
B.	0.5
C.	0.6
D.	0.8
Answer» B. 0.5

Discussion

16.	What is the degree of freedom of a gaseous mixture composed of CH4, CO2, H2CO3, H2O and H2O2?
A.	1
B.	2
C.	3
D.	4
Answer» E.

Discussion

17.	What is the degree of freedom of a mixture composed of liquid O2, gaseous H2 and ice?
A.	1
B.	2
C.	3
D.	4
Answer» B. 2

Discussion

18.	A reaction has produced 45 moles of water and 25 liter of bone dry air at 27oC and 25 atm, what is the humidity?
A.	0.25
B.	1.04
C.	1.8
D.	2.09
Answer» D. 2.09

Discussion

19.	25 mole of CH4 reacts completely with excess air, if 25 liter of bone dry air is produced at 27oC and 5 atm, what is the humidity?
A.	0.1
B.	1
C.	5
D.	10
Answer» E.

Discussion

20.	2 mole of CH4 reacts completely with excess air, if 25 liter of bone dry air is produced at 27oC and 5 atm, what is the humidity?
A.	0.45
B.	0.8
C.	0.95
D.	1.43
Answer» C. 0.95

Discussion

21.	0.1 mole of CH4 reacts completely with excess air, if 1 liter of bone dry air is produced at 27oC and 25 atm, what is the humidity?
A.	0.04
B.	0.15
C.	0.2
D.	0.52
Answer» D. 0.52

Discussion

22.	6 mole glucose reacts completely with excess air, if 25 liter of bone dry air is produced at 27oC and 20 atm, what is the humidity?
A.	0.2
B.	0.8
C.	1.45
D.	1.8
Answer» E.

Discussion

23.	10 mole glucose reacts completely with excess air, if 25 liter of bone dry air is produced at 27oC and 30 atm, what is the humidity?
A.	1
B.	2
C.	3
D.	4
Answer» C. 3

Discussion

24.	1 mole of CH4 reacts completely with excess air, if 5 liter of bone dry air is produced at 27oC and 5 atm, what is the humidity?
A.	0.25
B.	0.5
C.	1
D.	2
Answer» E.

Discussion

25.	50 mole of CH4 reacts completely with excess air, if 25 liter of bone dry air is produced at 27oC and 25 atm, what is the humidity?
A.	0.2
B.	0.8
C.	2
D.	4
Answer» E.

Discussion

26.	0.2 mole glucose reacts completely with excess air, if 5 liter of bone dry air is produced at 27oC and 5 atm, what is the humidity?
A.	0.4
B.	0.8
C.	1.2
D.	1.6
Answer» D. 1.6

Discussion

27.	1 mole glucose reacts completely with excess air, if 25 liter of bone dry air is produced at 27oC and 5 atm, what is the humidity?
A.	0.4
B.	0.8
C.	1.2
D.	1.6
Answer» D. 1.6

Discussion

28.	A 40% gas in a system has partial pressure 4 atm, what is Henry's constant?
A.	1.6 atm
B.	4 atm
C.	10 atm
D.	16 atm
Answer» D. 16 atm

Discussion

29.	What is the fraction of a gas in a system with partial pressure 10 mm Hg, H = 25 mm Hg?
A.	0.1
B.	0.2
C.	0.3
D.	0.4
Answer» E.

Discussion

30.	What is the K value of a gas with partial pressure 10 atm and the total pressure of the system is 50 atm?
A.	0.1
B.	0.2
C.	100
D.	500
Answer» C. 100

Discussion

31.	What is the partial pressure of a 10% gas in a system, if H = 2 mm Hg?
A.	0.1 mm Hg
B.	0.2 mm Hg
C.	0.3 mm Hg
D.	0.4 mm Hg
Answer» C. 0.3 mm Hg

Discussion

32.	What is the vapor pressure of 40% gas in a system with partial pressure 20 mm Hg?
A.	5 mm Hg
B.	10 mm Hg
C.	20 mm Hg
D.	50 mm Hg
Answer» E.

Discussion

33.	What is the total pressure of a system having 40% O2 with 5 atm partial pressure and 60% N2 with 10 atm partial pressure?
A.	2 atm
B.	6 atm
C.	8 atm
D.	10 atm
Answer» D. 10 atm

Discussion

34.	What is the total pressure of a system having 50% H2CO3 with 6 atm partial pressure and 50% O2 with 12 atm partial pressure?
A.	3 atm
B.	6 atm
C.	9 atm
D.	12 atm
Answer» D. 12 atm

Discussion

35.	What is the total pressure of a system having 25% CO2 with 4 atm partial pressure and 30% O2 with 10 atm partial pressure, and 45% SO2 with partial pressure 20 atm?
A.	9 atm
B.	13 atm
C.	17 atm
D.	19 atm
Answer» C. 17 atm

Discussion

Explore topic-wise MCQs in Chemical Engineering.

A reaction has produced 5 moles of water vapor and 10 liter bone dry air at 27oC and 15 atm, what is the humidity?

Which of the following is equal to the product of humidity and mass of dry gas?

What is the molal humidity of a gas with partial pressure with vapor 1 mm Hg and partial pressure without vapor 1 atm?

A reaction has produced 1 mole of water vapor and 5 liter of bone dry air at 27oC and 5 atm, what is the humidity?

What is the humidity, if the mass of dry gas is 10 Kg and mass of water vapor is 5 Kg?

A reaction has produced 1.5 moles of water and 2 liter of bone dry air at 27oC and 25 atm, what is the humidity?

A reaction has produced 0.4 mole of water vapor and 1 liter of bone dry air at 27oC and 5 atm, what is the humidity?

1.5 mole glucose reacts completely with excess air, if 5 liter of bone dry air is produced at 27oC and 30 atm, what is the humidity?

What is the degrees of freedom of a system with a mixture of ice, water and neon?

What is the partial pressure of 20% gas in a system with vapor pressure 10 mm Hg?

What is the degrees of freedom of a system with a mixture of copper pyrites, liquid benzene and helium?

What is the degree of freedom of a gas mixture composed of CO2, SO2, SO3, CH4, H2CO3?

What is the degree of freedom of a gas mixture composed of O2, H2O and H2O2?

What is the degree of freedom of a mixture composed Liquid H2O, solid Br2 and gaseous CO2, NO2?

What is the fraction of gas in a system with partial pressure 2 mm Hg and vapor pressure 5 mm Hg?

What is the degree of freedom of a gaseous mixture composed of CH4, CO2, H2CO3, H2O and H2O2?

What is the degree of freedom of a mixture composed of liquid O2, gaseous H2 and ice?

A reaction has produced 45 moles of water and 25 liter of bone dry air at 27oC and 25 atm, what is the humidity?

25 mole of CH4 reacts completely with excess air, if 25 liter of bone dry air is produced at 27oC and 5 atm, what is the humidity?

2 mole of CH4 reacts completely with excess air, if 25 liter of bone dry air is produced at 27oC and 5 atm, what is the humidity?

0.1 mole of CH4 reacts completely with excess air, if 1 liter of bone dry air is produced at 27oC and 25 atm, what is the humidity?

6 mole glucose reacts completely with excess air, if 25 liter of bone dry air is produced at 27oC and 20 atm, what is the humidity?

10 mole glucose reacts completely with excess air, if 25 liter of bone dry air is produced at 27oC and 30 atm, what is the humidity?

1 mole of CH4 reacts completely with excess air, if 5 liter of bone dry air is produced at 27oC and 5 atm, what is the humidity?

50 mole of CH4 reacts completely with excess air, if 25 liter of bone dry air is produced at 27oC and 25 atm, what is the humidity?

0.2 mole glucose reacts completely with excess air, if 5 liter of bone dry air is produced at 27oC and 5 atm, what is the humidity?

1 mole glucose reacts completely with excess air, if 25 liter of bone dry air is produced at 27oC and 5 atm, what is the humidity?

A 40% gas in a system has partial pressure 4 atm, what is Henry's constant?

What is the fraction of a gas in a system with partial pressure 10 mm Hg, H = 25 mm Hg?

What is the K value of a gas with partial pressure 10 atm and the total pressure of the system is 50 atm?

What is the partial pressure of a 10% gas in a system, if H = 2 mm Hg?

What is the vapor pressure of 40% gas in a system with partial pressure 20 mm Hg?

What is the total pressure of a system having 40% O2 with 5 atm partial pressure and 60% N2 with 10 atm partial pressure?

What is the total pressure of a system having 50% H2CO3 with 6 atm partial pressure and 50% O2 with 12 atm partial pressure?

What is the total pressure of a system having 25% CO2 with 4 atm partial pressure and 30% O2 with 10 atm partial pressure, and 45% SO2 with partial pressure 20 atm?