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Consider an insoluble mixture A and B; Find the Total pressure of the system Vapour pressure of A= 50mmHg Vapour pressure of B= 100 mmHg
A
50 mmHg
B
100 mmHg
C
150 mmHg
D
200 mmHg
Correct Answer:
150 mmHg
For an insoluble mixture, total pressure = sum of vapour pressure.
Consider an ideal vapour-liquid binary mixture, find the total pressure if the vapour pressure of A is 260 mmHg and the vapour pressure of B is 520 mmHg and the composition of A in mole fraction is 0.55.
A
177 mmHg
B
277 mmHg
C
377 mmHg
D
477 mmHg
Check whether we get approximately 80% saturation if the total pressure and the partial pressure of the gas mixture is 760 mmHg and 260 mmHg. Also, the vapour pressure is 300 mmHg.
A
True
B
False
Guess the saturated molar absolute humidity of the gas(A.- Vapour(B. mixture at 100 degree Celsius. Vapour pressure of A is 300 mmHg and the total pressure is 760 mmHg.
A
0.39
B
0.65
C
0.60
D
Cannot determine
Consider a saturated gas(A.-vapour(B. mixture , if the absolute molal humidity is 0.265 and the total pressure= 760 mmHg. Find the vapour pressure of B.
A
149.21 mmHg
B
159.21 mmHg
C
169.21 mmHg
D
600.8 mmHg
In a solution (A and B); The vapour pressure of A is 260 mmHg and B is 360 mmHg; Find the relative volatility?
A
0.72
B
1.38
C
2
D
None of the mentioned
Consider the following statements and choose the correct answer:
1. A direct proportionality exists between vapour pressure and the concentration of water vapour in the atmosphere
2. Relative humidity is an expression of the ratio of the actual vapour pressure of the atmosphere when saturated at the same temperature
3. A rise or fall in temperature with no change in vapour pressure will cause a drop or rise, respectively, in relative humidity
4. A rise or fall in vapour pressure with no change in temperature will be accompanied by a rise or fall, respectively, in relative humidity
A
1, 2, 3 and 4 are true
B
Only 3 and 4 are true
C
Only 2 and 4 are true
D
Only 1, 2 and 3 are true
What is the total pressure exerted by a mixture of 0.45 kg mole of benzene, 0.44 kg mole of toluene and 0.23 kg mole of o-xylene at 100°C, if their vapor pressures at 100°C are 1340, 560 and 210 mmHg respectively?
A
756.2
B
780.5
C
801.5
D
880.5
Find the vapour pressure of component A in an ideal mixture, if its liquid composition and the partial pressure is 0.65 and 260 mmHg.
A
260 mmHg
B
400 mmHg
C
760 mmHg
D
Cannot determine
An air-water vapour mixture has a dry bulb temperature of 60°C and a dew point temperature of 40°C. The total pressure is 101.3 kPa and the vapour pressure of water at 40°C and 60°C are 7.30 kPa and 19.91 kPa respectively.The humidity of air sample expressed as kg of water vapour/kg of dry air is
A
0.048
B
0.079
C
0.122
D
0.152
The highest pressure gas of a mixture has partial pressure p, the partial pressure of other gases decreases by factor of 2n-1, the partial pressure of second gases decreases by a factor of 2, partial pressure of third gas increases by 4, and so on, if the total pressure of gas mixture is 31p/16, how many gases are present in the mixture?
A
3
B
5
C
10