Advertisements
Advertisements
प्रश्न
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.
Advertisements
उत्तर
(iii) These will form minimum boiling azeotrope.
(iv) These will not form ideal solution.
Explanation:
∆Hmix = 0, ∆Vmix = 0 and benzene and toluene will form an ideal solution. Also, ideal solutions do not form minimum boiling azeotropes.
APPEARS IN
संबंधित प्रश्न
What role does the molecular interaction play in a solution of alcohol and water?
How is the sign of ΔmixH related to positive deviations from Raoult’s law?
Suggest the most important type of intermolecular attractive interaction in the following pair.
acetonitrile (CH3CN) and acetone (C3H6O)
What type of intermolecular attractive interaction exists in the pair of methanol and acetone?
Which of the following concentration terms is/are independent of temperature
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 ______.
The mass of a non – volatile solute (molar mass 80 g mol-1) should be dissolved in 92g of toluene to reduce its vapour pressure to 90% ______.
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 of the following is an example of a solid solution?
Assertion: Molarity of a solution in liquid state changes with temperature.
Reason: The volume of a solution changes with change in temperature.
Dissociation constant and molar conductance of an acetic acid solution are 1.78 × 10–5 mol L–1 and 48.15 S cm–2 mol–1 respectively. The conductivity of the solution is (considering molar conductance at infinite dilution is 390.5 S cm–2 mol–1)
How many times more hydrogen ions in a solution with a pH of 3 than in a solution with a pH of 6
On increase in pressure for dissociation ofN2O4 into NO2, equilibrium shift towards
Lowering of vapour pressure of an aqueous solution of a non-volatile, non-electrolyte 1 molal aqueous solution at 100°C is ______.
While titration dilute HCl solution with aqueous NaOH, which of the following will not be required?
1 mole of liquid A and 2 moles of liquid B make a solution having a total vapour pressure of 40 torr. The vapour pressure of pure A and pure B are 45 torr and 30 torr, respectively. The above solution ______.
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.
n-hexane and n-octane
