Advertisements
Advertisements
प्रश्न
If two liquids A and B form minimum boiling azeotrope at some specific composition then ______.
पर्याय
A–B interactions are stronger than those between A–A or B–B.
vapour pressure of solution increases because more number of molecules of liquids A and B can escape from the solution.
vapour pressure of solution decreases because less number of molecules of only one of the liquids escape from the solution.
A–B interactions are weaker than those between A–A or B–B.
Advertisements
उत्तर
If two liquids A and B form minimum boiling azeotrope at some specific composition then A–B interactions are weaker than those between A–A or B–B.
Explanation:
The solutions which show large positive deviation from Rault’s law form n = minimum boiling azeotrope at some specific composition. In the case of positive deviation from Rault’s law, A-B interactions are weaker than those between A-A or B-B.
APPEARS IN
संबंधित प्रश्न
The partial pressure of nitrogen in air is 0.76 atm and its Henry’s law constant is 7.6 × 104 atm at 300 K. What is the mole fraction of nitrogen gas in the solution obtained when air is bubbled through water at 300 K?
Which one of the following is incorrect for an ideal solution?
The KH for the solution of oxygen dissolved in water is 4 × 104 atm at a given temperature. If the partial pressure of oxygen in air is 0.4 atm, the mole fraction of oxygen in solution is ______.
Two liquids X and Y on mixing gives a warm solution. The solution is ______.
Assertion: An ideal solution obeys Raoults Law.
Reason: In an ideal solution, solvent – solvent as well as solute – solute interactions are similar to solute-solvent interactions.
State Raoult law and obtain the expression for lowering of vapour pressure when the nonvolatile solute is dissolved Insolvent.
Which solution has the lower freezing point? 10 g of methanol (CH3OH) in 100g g of water (or) 20 g of ethanol (C2H5OH) in 200 g of water.
The observed depression in the freezing point of water for a particular solution is 0.093°C calculate the concentration of the solution in molality. Given that molal depression constant for water is 1.86 K Kg mol-1.
For ideal solution the enthalpy of mixing of the pure components to form the solution is ____________.
Which relationship is not correct?
Intermolecular forces between two benzene molecules are nearly of same strength as those between two toluene molecules. For a mixture of benzene and toluene, which of the following are not true?
(i) ∆mix H = zero
(ii) ∆mix V = zero
(iii) These will form minimum boiling azeotrope.
(iv) These will not form ideal solution.
What is “semi permeable membrane”?
The pH of a solution of hydrochloric acid is 1.5. Calculate the concentration of the acid.
On increase in pressure for dissociation ofN2O4 into NO2, equilibrium shift towards
If liquids A and B form an ideal solution, the ______.
What type of deviation from Roult’s Law is expected when phenol and aniline are mixed with each other? What change in the net volume of the mixture is expected? Graphically represent the deviation.
Suggest the most important type of intermolecular attractive interaction in the following pair:
I2 and CCl4
Suggest the most important type of intermolecular attractive interaction in the following pair.
NaClO4 and water
