Dew point of water at standard conditions is?a) 100 Kb) 273 Kc) 373 Kd) 473 K 9-10. Water vapour of 5 KPa at 300 K is saturated with air in a system.9. What is the mole fraction of air?

473 K 9-10. Water vapour of 5 KPa at 300 K is saturated with air in a system.9. What is the mole fraction of air?a) 0.952b) 0852c) 0.259d) 0.291View Answer

100 Kb) 273 Kc) 373 Kd) 473 K 9-10. Water vapour of 5 KPa at 300 K is saturated with air in a system.9. What is the mole fraction of air?a) 0.952

273 Kc) 373 Kd) 473 K 9-10. Water vapour of 5 KPa at 300 K is saturated with air in a system.9. What is the mole fraction of air?a) 0.952b) 0852

373 Kd) 473 K 9-10. Water vapour of 5 KPa at 300 K is saturated with air in a system.9. What is the mole fraction of air?a) 0.952b) 0852c) 0.259

473 K 9-10. Water vapour of 5 KPa at 300 K is saturated with air in a system.9. What is the mole fraction of air?a) 0.952b) 0852c) 0.259d) 0.291View Answer

At dew point the partial pressure of the is equal to the partial pressure of the volatile liquid.The above given statements isa) Always correctb) Incorrectc) Depends on the properties of the liquidd) None of the mentioned 5-7. Assume water in air at 600 mm of Hg at 51 Degree Celsius. (Vapour pressure = 98 mm Hg)5. What is the pressure of Air?

Depends on the properties of the liquidd) None of the mentioned 5-7. Assume water in air at 600 mm of Hg at 51 Degree Celsius. (Vapour pressure = 98 mm Hg)5. What is the pressure of Air?a) 502 mm Hgb) 402 mm Hgc) 302 mm Hg

Always correctb) Incorrectc) Depends on the properties of the liquidd) None of the mentioned 5-7. Assume water in air at 600 mm of Hg at 51 Degree Celsius. (Vapour pressure = 98 mm Hg)5. What is the pressure of Air?a) 502 mm Hg

Incorrectc) Depends on the properties of the liquidd) None of the mentioned 5-7. Assume water in air at 600 mm of Hg at 51 Degree Celsius. (Vapour pressure = 98 mm Hg)5. What is the pressure of Air?a) 502 mm Hgb) 402 mm Hg

Depends on the properties of the liquidd) None of the mentioned 5-7. Assume water in air at 600 mm of Hg at 51 Degree Celsius. (Vapour pressure = 98 mm Hg)5. What is the pressure of Air?a) 502 mm Hgb) 402 mm Hgc) 302 mm Hg

None of the mentioned 5-7. Assume water in air at 600 mm of Hg at 51 Degree Celsius. (Vapour pressure = 98 mm Hg)5. What is the pressure of Air?a) 502 mm Hgb) 402 mm Hgc) 302 mm Hgd) 202 mm HgView Answer

Antoine equation is a relation between

Vapour pressure and absolute pressure

Vapour pressure and partial pressure

Vapour pressure and Temperature

Vapour pressure and absolute pressure

29 + Mcqs in Saturation in Chemical Process Calculation Page 1 McqOptions

1.	10 KPa of water vapor at 27oC is saturated with air in a system, what is the mole fraction of air?
A.	0.21
B.	0.46
C.	0.79
D.	0.91View answer
Answer» E.

2.	100 KPa of water vapor at 27oC is saturated with air in a system, what is the mole fraction of air?
A.	0.23
B.	0.306
C.	0.425
D.	0.503View answer
Answer» E.

3.	Ethanol is burnt with required amount of O2 at atmospheric pressure, the conversion of ethanol is 100%, what is the pressure at due point?
A.	0.2 atm
B.	0.4 atm
C.	0.6 atm
D.	0.8 atmView answer
Answer» D. 0.8 atmView answer

4.	Ethane is burnt with 20% excess O2 at 2 atm, conversion rate of ethane is 50%, what is the pressure at due point?
A.	0.45 atm
B.	0.75 atm
C.	0.9 atm
D.	1 atmView answer
Answer» D. 1 atmView answer

5.	CH4 is burnt with 100% excess O2 at atmospheric pressure, if CH4 conversion is 100%, what is the pressure at dew point?
A.	0.2 atm
B.	0.4 atm
C.	0.6 atm
D.	0.8 atmView answer
Answer» C. 0.6 atm

6.	The partial pressure of a system at 49oC is 125 mm Hg and saturated ammonia vapor has partial pressure 20 mm Hg at 49oC, what is the fraction of ammonia vapor in the system?
A.	0.04
B.	0.08
C.	0.16
D.	0.24View answer
Answer» D. 0.24View answer

7.	A container has vapor H2O with partial pressure 9 atm, what is fraction of air in the vessel?
A.	0.1
B.	0.4
C.	0.7
D.	0.9View answer
Answer» B. 0.4

8.	A vessel contains air and vapor H2O, if the partial pressure of vapor H2O is 4 atm and pressure of air is 1 atm, what is the fraction of vapor H2O in vessel?
A.	0.25
B.	0.5
C.	0.75
D.	0.8View answer
Answer» D. 0.8View answer

9.	What is the mole fraction of vapour?
A.	0.047
B.	0.057
C.	0.067
D.	0.077
Answer» B. 0.057

12.	10_KPA_OF_WATER_VAPOR_AT_27^OC_IS_SATURATED_WITH_AIR_IN_A_SYSTEM,_WHAT_IS_THE_MOLE_FRACTION_OF_AIR??$
A.	0.21
B.	0.46
C.	0.79
D.	0.91
Answer» E.

13.	WHAT_IS_THE_MOLE_FRACTION_OF_VAPOUR??$
A.	0.047
B.	0.057
C.	0.067
D.	0.077
Answer» B. 0.057

20.	What is the composition of vapour?
A.	0.163
B.	0.183
C.	0.2837
D.	0.8367
Answer» B. 0.183

21.	What is the dew point of water at standard conditions?
A.	32<sup>o</sup>F
B.	212<sup>o</sup>F
C.	372<sup>o</sup>F
D.	584<sup>o</sup>F
Answer» C. 372<sup>o</sup>F

26.	The temperature at which the vapour just start to condense at a specified pressure is
A.	Critical temperature
B.	Boiling point
C.	Dew point
D.	Triple point
Answer» D. Triple point

28.	Correct representation of the Antoine equation is
A.	ln(p*) = A-B/(C+T)
B.	log(p*) = A-B/(C-T)
C.	ln(p*) = A+B/(C+T)
D.	log(p*) = A-B/(C+T)
Answer» C. ln(p*) = A+B/(C+T)

14.	100 KPa of water vapor at 27^oC is saturated with air in a system, what is the mole fraction of air?
A.	0.230
B.	0.306
C.	0.425
D.	0.503
Answer» E.

15.	Water vapour of 5 KPa at 300 K is saturated with air in a system?
A.
B.	0.952
C.	0852
Answer» B. 0.952

17.	Dew point of water at standard conditions is?
A.	100 K
B.	273 K
C.	373 K
D.	473 K
Answer» D. 473 K

18.	Ethane is burnt with 20% excess O₂ at 2 atm, conversion rate of ethane is 50%, what is the pressure at due point?
A.	0.45 atm
B.	0.75 atm
C.	0.9 atm
D.	1 atm
Answer» D. 1 atm

19.	CH₄ is burnt with 100% excess O₂ at atmospheric pressure, if CH₄ conversion is 100%, what is the pressure at dew point?
A.	0.2 atm
B.	0.4 atm
C.	0.6 atm
D.	0.8 atm
Answer» C. 0.6 atm

22.	Assume water in air at 600 mm of Hg at 51 Degree Celsius. (Vapour pressure = 98 mm Hg)
A.
B.	502 mm Hg
C.	402 mm Hg
Answer» B. 502 mm Hg

23.	The partial pressure of a system at 49^oC is 125 mm Hg and saturated ammonia vapor has partial pressure 20 mm Hg at 49^oC, what is the fraction of ammonia vapor in the system?
A.	0.04
B.	0.08
C.	0.16
D.	0.24
Answer» D. 0.24

24.	At dew point the partial pressure of the is equal to the partial pressure of the volatile liquid.
A.
B.	Always correct
C.	Incorrect
Answer» C. Incorrect

25.	A system has partial pressure 500 mm Hg and the saturated water vapor has partial pressure 25 mm Hg, what is the fraction of water vapor in the system?
A.	0.01
B.	0.05
C.	0.1
D.	0.5
Answer» C. 0.1

27.	A container has vapor H₂O with partial pressure 9 atm, what is fraction of air in the vessel?
A.	0.1
B.	0.4
C.	0.7
D.	0.9
Answer» B. 0.4

Explore topic-wise MCQs in Chemical Process Calculation.

10 KPa of water vapor at 27oC is saturated with air in a system, what is the mole fraction of air?

100 KPa of water vapor at 27oC is saturated with air in a system, what is the mole fraction of air?

Ethanol is burnt with required amount of O2 at atmospheric pressure, the conversion of ethanol is 100%, what is the pressure at due point?

Ethane is burnt with 20% excess O2 at 2 atm, conversion rate of ethane is 50%, what is the pressure at due point?

CH4 is burnt with 100% excess O2 at atmospheric pressure, if CH4 conversion is 100%, what is the pressure at dew point?

The partial pressure of a system at 49oC is 125 mm Hg and saturated ammonia vapor has partial pressure 20 mm Hg at 49oC, what is the fraction of ammonia vapor in the system?

A container has vapor H2O with partial pressure 9 atm, what is fraction of air in the vessel?

A vessel contains air and vapor H2O, if the partial pressure of vapor H2O is 4 atm and pressure of air is 1 atm, what is the fraction of vapor H2O in vessel?

What is the mole fraction of vapour?

Dew point of water at standard conditions is?a) 100 Kb) 273 Kc) 373 Kd) 473 K 9-10. Water vapour of 5 KPa at 300 K is saturated with air in a system.9. What is the mole fraction of air?

10_KPA_OF_WATER_VAPOR_AT_27OC_IS_SATURATED_WITH_AIR_IN_A_SYSTEM,_WHAT_IS_THE_MOLE_FRACTION_OF_AIR??$

WHAT_IS_THE_MOLE_FRACTION_OF_VAPOUR??$

100 KPa of water vapor at 27oC is saturated with air in a system, what is the mole fraction of air?

Water vapour of 5 KPa at 300 K is saturated with air in a system?

Ethanol is burnt with required amount of O2 at atmospheric pressure, the conversion of ethanol is 100%, what is the pressure at due point?

Dew point of water at standard conditions is?

Ethane is burnt with 20% excess O2 at 2 atm, conversion rate of ethane is 50%, what is the pressure at due point?

CH4 is burnt with 100% excess O2 at atmospheric pressure, if CH4 conversion is 100%, what is the pressure at dew point?

What is the composition of vapour?

What is the dew point of water at standard conditions?

Assume water in air at 600 mm of Hg at 51 Degree Celsius. (Vapour pressure = 98 mm Hg)

The partial pressure of a system at 49oC is 125 mm Hg and saturated ammonia vapor has partial pressure 20 mm Hg at 49oC, what is the fraction of ammonia vapor in the system?

At dew point the partial pressure of the is equal to the partial pressure of the volatile liquid.

A system has partial pressure 500 mm Hg and the saturated water vapor has partial pressure 25 mm Hg, what is the fraction of water vapor in the system?

The temperature at which the vapour just start to condense at a specified pressure is

A container has vapor H2O with partial pressure 9 atm, what is fraction of air in the vessel?

Correct representation of the Antoine equation is

Antoine equation is a relation between

10_KPA_OF_WATER_VAPOR_AT_27^OC_IS_SATURATED_WITH_AIR_IN_A_SYSTEM,_WHAT_IS_THE_MOLE_FRACTION_OF_AIR??$

100 KPa of water vapor at 27^oC is saturated with air in a system, what is the mole fraction of air?

Ethanol is burnt with required amount of O₂ at atmospheric pressure, the conversion of ethanol is 100%, what is the pressure at due point?

Ethane is burnt with 20% excess O₂ at 2 atm, conversion rate of ethane is 50%, what is the pressure at due point?

CH₄ is burnt with 100% excess O₂ at atmospheric pressure, if CH₄ conversion is 100%, what is the pressure at dew point?

The partial pressure of a system at 49^oC is 125 mm Hg and saturated ammonia vapor has partial pressure 20 mm Hg at 49^oC, what is the fraction of ammonia vapor in the system?

A container has vapor H₂O with partial pressure 9 atm, what is fraction of air in the vessel?