A solution showing a large positive deviation from Raoult's law forms a:
Minimum boiling azeotrope
Maximum boiling azeotrope
Ideal solution
Supersaturated solution
Related Questions
At 25Β°C, the vapor pressures of pure benzene and toluene are 12.8 kPa and 3.85 kPa, respectively. If an ideal solution is prepared with 2 moles of benzene and 1 mole of toluene, what is the total vapor pressure above the solution?
6.43 kPa
9.78 kPa
16.65 kPa
8.33 kPa
The vapour pressure of a dilute solution of non-volatile solute is and the of pure solvent is , the lowering of the is :
Pβ - P
P - Pβ
Pβ + P
P/Pβ
An aqueous solution of glucose was prepared by dissolving 18 g of glucose in 90 g of water. The relative lowering in vapour pressure is
0.01
0.02
1
20
Which of the following mixtures exhibits a positive deviation from Raoult's law?
Ethanol and acetone
Chloroform and acetone
Benzene and toluene
Nitric acid and water
A liquid is kept in a closed vessel. If a glass plate (negligible mass) with a small hole is kept on top of the liquid surface, then the vapour pressure of the liquid in the vessel is :
More than what would be if the glass plate were removed
Same as what would be if the glass plate were removed
Less than what would be if the glass plate were removed
Cannot be predicted
The vapour pressure of pure liquid A is . When a non-volatile B is added to A its vapour pressure drops to . The mole fraction of B in the solution is
The azeotropic mixture of water (b. pt.100β) and HCl (b.pt. 85β) boils at 108.5β.When this mixture is distilled it is possible to obtain
Pure HCl
Pure water
Pure water as well as HCl
Neither HCl nor in their pure states
Among the following mixtures, dipole-dipole as the major interaction is present in :
Benzene and ethanol
KCl and water
Acetonitrile and acetone
Benzene and
A solution of benzene and toluene at 25Β°C has a total vapor pressure of 7.0 kPa. The vapor pressures of pure benzene and toluene at this temperature are 12.8 kPa and 3.85 kPa, respectively. Assuming ideal behavior, what is the mole fraction of benzene in the liquid phase?
0.648
0.352
0.5
0.75