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What type of solutions exhibit positive deviations from Raoult’s law? - Chemistry

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प्रश्न

What type of solutions exhibit positive deviations from Raoult’s law?

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उत्तर

The solutions in which solute-solvent intermolecular attractions are weaker than those between solute-solute molecules and solvent-solvent molecules, exhibit positive deviations.

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Vapour Pressure of Solutions of Liquids in Liquids
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अध्याय 2: Solutions - Very short answer questions

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एससीईआरटी महाराष्ट्र Chemistry [English] 12 Standard HSC
अध्याय 2 Solutions
Very short answer questions | Q 7

संबंधित प्रश्न

Choose the most correct option.

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Vapour pressure of a solution is _______.


State Raoult’s law for the solutions of non-volatile solutes in volatile solvents.


Answer the following.

Using Raoult’s law, how will you show that ΔP = `"P"_1^0 "x"_2`? Where, x2 is the mole fraction of solute in the solution and `"P"_1^0` vapour pressure of pure solvent.


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.


State Raoult’s law. 


Distinguish between ideal and non-ideal solutions.


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 statements is INCORRECT?


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?


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18 g of glucose (C6H12O6) is added to 178.2 g of water. The vapour pressure of water for this aqueous solution at l00°C is ______.


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, ______.


A solution having highest vapour pressure is ______.


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


State Raoult’s law for solutions containing volatile solutes.


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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