Bissoy
Login
Get Advice on Live Video Call
Earn $ Cash $ with
consultations on Bissoy App
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
Correct Answer:
801.5
The vapor pressures of benzene and toluene are 3 and $$\frac{4}{3}$$ atmospheres respectively. A liquid feed of 0.4 moles of benzene and 0.6 moles of toluene is vapourised. Assuming that the products are in equilibrium, the vapor phase mole fraction of benzene is
A
0.4
B
0.6
C
0.8
D
0.2
The boiling points for pure water and pure toluene are 100°C and 110.6°C respectively. Toluene and water are completely immiscible in each other. A well agitated equimolar mixture of toluene and water are prepared. If, at a total pressure of one standard atm. exerted by the vapours of water and toluene, the mole fraction of water X
w
in the vapour phase satisfies
A
[ <p><span>A. 0 w <p><span>B. X<sub>w</sub> = 0.5
B
0.5 w
C
X<sub>w</sub> = 1.0
Saturated solution of benzene in water is in equilibrium with a mixture of air and vapours of benzene and water at room temperature and pressure. Mole fraction of benzene in liquid is x
B
and the vapour pressures of benzene and water at these conditions are P
v
B
and P
v
w
respectively. The partial pressure of benzene in air-vapour mixture is
A
P<sub>v</sub><sup>B</sup>
B
X<sub>B</sub>.P<sub>v</sub><sup>B</sup>
C
(P<sub>atm</sub> - P<sub>v</sub><sup>w</sup>)x<sub>B</sub>
D
X<sub>B</sub>.P<sub>atm</sub>
In the hydrodealkylation of toluene to benzene, the following reactions occur:
C
7
H
8
+ H
2
→ C
6
H
6
+ CH
4
2C
6
H
6
⇋ C
12
H
10
+ H
2
Toluene and hydrogen are fed to a reactor in a molar ratio 1 : 5.80% of the toluene gets converted and the selectivity of benzene (defined as moles of benzene formed/moles of toluene converted) is 90%. The fractional conversion of hydrogen is
A
0.16
B
0.144
C
0.152
D
0.136
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
The boiling points for pure water and pure toluene are 100°C and 110.6°C respectively. Toluene and water are completely immiscible in each other. A well agitated equimolar mixture of toluene and water are prepared. The temperature at which the above mixture will exert a pressure of one standard atm. is
A
Less than 100°C
B
100°C
C
Between 100 and 110°C
D
110.6°C
In a mixture of benzene vapor and nitrogen gas at a total pressure of 900 mm Hg, if the absolute humidity of benzene is 0.2 kg benzene/kg nitrogen, the partial pressure of benzene in mm Hg is
A
180
B
60.3
C
720
D
200
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
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
The ratio of existing moles of vapor per mole of vapor free gas to the moles of vapor that would be present per mole of vapor free gas, if the mixture were saturated at the existing temperature & pressure, is termed as the
A
Relative humidity
B
Relative saturation
C
Percentage saturation
D
None of these