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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Choose the most correct option. Vapour pressure of a solution is _______. - Chemistry

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प्रश्न

Choose the most correct option.

Vapour pressure of a solution is _______.

पर्याय

  • directly proportional to the mole fraction of the solute

  • inversely proportional to the mole fraction of the solute

  • inversely proportional to the mole fraction of the solvent

  • directly proportional to the mole fraction of the solvent

MCQ

उत्तर

Vapour pressure of a solution is directly proportional to the mole fraction of the solvent.

For solutions containing non-volatile solutes, Raoult's law may be stated as at a given temperature, the vapour pressure of a solution containing a non-volatile solute is directly proportional to the mole fraction of the solvent.

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Vapour Pressure of Solutions of Liquids in Liquids
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पाठ 2: Solutions - Exercises [पृष्ठ ४५]

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बालभारती Chemistry [English] 12 Standard HSC
पाठ 2 Solutions
Exercises | Q 1.09 | पृष्ठ ४५

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 ______.


Answer the following in one or two sentences.

State Raoult’s law for a solution containing a nonvolatile solute.


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.


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.


State Raoult’s law. 


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


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What are ideal and non-ideal solutions?


The vapour pressures of two liquids A and B are 80 mmHg and 60 mm Hg respectively at 25°C. What is the vapour pressure of the solution obtained by mixing 3 moles of A and 2 moles of B?


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State Raoult's law for solutions of volatile components.


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


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