मराठी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

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? - Chemistry

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.

टीपा लिहा
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.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 2: Solutions - Exercises [पृष्ठ २२]

APPEARS IN

एनसीईआरटी एक्झांप्लर Chemistry [English] Class 12
पाठ 2 Solutions
Exercises | Q II. 28. | पृष्ठ २२

संबंधित प्रश्‍न

Vapour pressure of pure acetone and chloroform at 328 K are 741.8 mm Hg and 632.8 mm Hg respectively. Assuming that they form ideal solution over the entire range of composition, plot `p_"total"`, `p_"chloroform"` and `p_"acetone"` as a function of `chi_"acetone"`. The experimental data observed for different compositions of mixtures is:

`bb(100 xx chi_"acetone")` `bb(P_"acetone"//"mm Hg")` `bb(p_"chloroform"//"mm Hg")`
0 0 632.8
11.8 54.9 548.1
23.4 110.1 469.4
36 202.4 359.7
50.8 322.7 257.7
58.2 405.9 193.6
64.5 454.1 161.2
72.1 521.1 120.7

Plot this data also on the same graph paper. Indicate whether it has a positive  or negative deviation from the 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 ______.


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.


The rate at which a solid dissolves in liquid does not depend on ____________.


Which relationship is not correct?


What is “semi permeable membrane”?


Assertion: When a solution is separated from the pure solvent by a semipermeable membrane, the solvent molecules pass through it from pure solvent side to the solution side.

Reason: Diffusion of solvent occurs from a region of high concentration solution to a region of low concentration solution.


Upon increase in pressure for dissociation N2O4 into NO2, equilibrium shift towards


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)


While titration dilute HCl solution with aqueous NaOH, which of the following will not be required?


If liquids A and B form an ideal solution, the ______.


Assertion (A): The enthalpy of mixing Δmix H is equal to zero for an ideal solution.

Reason (R): For an ideal solution the interaction between solute and solvent molecules is stronger than the interactions between solute-solute or solvent-solvent molecules.


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


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×