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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

What are non-ideal solutions? - Chemistry

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प्रश्न

What are non-ideal solutions?

लघु उत्तर
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उत्तर

  1. The solutions which do not obey Raoult’s law over the entire range of concentrations are called non-ideal solutions.
  2. Liquids whose molecules interact with one another with a force different from the force their own molecules interact with one another produce non-ideal solutions.
  3. Therefore, when the forces of attraction between molecules A and B differ from those between molecules A-A or B-B, two liquids A and B, create a non-ideal solution.
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पाठ 2: Solutions - Long answer questions

संबंधित प्रश्‍न

Choose the most correct option.

The vapour pressure of a solution containing 2 moles of a solute in 2 moles of water (vapour pressure of pure water = 24 mm Hg) is ______.


Fish generally needs O2 concentration in water at least 3.8 mg/L for survival. What partial pressure of O2 above the water is needed for the survival of fish? Given the solubility of O2 in water at 0 °C and 1 atm-1 partial pressure is 2.2 × 10-3 atm mol/L.


A mixture of benzene and toluene contains 30% by mass of toluene. At 30°C, vapour pressure of pure toluene is 36.7 mm Hg and that of pure benzene is 118.2 mm Hg. Assuming that the two liquids form ideal solutions, calculate the total pressure and partial pressure of each constituent above the solution at 30°C.


What is enthalpy change and volume change of mixing of two components forming an ideal solution?


The vapour pressures of pure liquids A and B are 0.600 bar and 0.933 bar respectively, at a certain temperature.
What is the mole fraction of liquid B in the solution when the total vapour pressure of their mixture is 0.8 bar?


Distinguish between ideal and non-ideal solutions.


With the help of vapour pressure-temperature curves for solution and solvent, explain why boiling point of solvent is elevated when a nonvolatile solute is dissolved into it.


The vapour pressure of a pure solvent at a certain temperature is 0.0227 bar. What is the vapour pressure of a solution containing 6 g of solute (M = 60 g/mol) in 50 g of solvent?


Which of the following metals is refined by vapour phase refining in Mond process?


Which of the following is NOT nonideal solution?


9 gram anhydrous oxalic acid (mol. wt. = 90) was dissolved in 9.9 moles of water. If vapour pressure of pure water is pf the vapour pressure of solution is ______.


If 1 mole of ____________ is added to 1 dm3 of water, the boiling point of water will decrease.


5.0 g of sodium hydroxide (molar mass 40 g mol-1) is dissolved in little quantity of water and the solution is diluted upto 100 mL. What is the molarity of the resulting solution?


A solution of acetone in ethanol ______.


Total vapour pressure of a mixture of 1 mole A`("p"_"A"^circ = 150 " torr")` and 2 mole B`("p"_"B"^circ = 240 " torr")` is 200 mm. In this case, ______.


What are ideal and non-ideal solutions?


Explain the variation of vapour pressures with mole fractions of binary solutions of two volatile liquids forming ideal solutions.


Write the relationship between mole fraction of solvent and vapour pressure of solution.


A mixture of two liquids A and B have vapour pressures 3.4 × 104 Mn-2 and 5.2 × 104 Nm-2. If the mole fraction of A is 0.85, find the vapour pressure of the solution.


The solutions that obey Raoult's law over entire range of concentrations are ______.


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