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  • I have a doubt, kindly clarify. Which of the following is incorrect

Which of the following is incorrect

  • Option 1)

    Relative lowering of vapour pressure is independent

  • Option 2)

    The vapour pressure is a colligative property

  • Option 3)

    Vapour pressure of a solution is lower than the vapour pressure of the solvent

  • Option 4)

    The relative lowering of vapour pressure is directly propertional to the original pressure

 

Answers (1)

best_answer

As we learned

 

Raoult's Law -

The partial pressure of any volatile constituents of a solution at a given temperature is equal to the product of vapour pressure of pure constituent and its mole fraction in the solution.

P_{A}=P_{A}^{0}x_{A}

P_{B}=P_{B}^{0}x_{B}

 

 

- wherein

P_{A}^{0}  and P_{B}^{0} are vapour pressures of pure liquids.

P_{A}  and P_{B} are vapour pressures of A and B respectively.

 

 According to Raoult's law, the relative lowering in vapour pressure of a dilute solution is equal to mole fraction of the solute present in the
solution.


Option 1)

Relative lowering of vapour pressure is independent

Option 2)

The vapour pressure is a colligative property

Option 3)

Vapour pressure of a solution is lower than the vapour pressure of the solvent

Option 4)

The relative lowering of vapour pressure is directly propertional to the original pressure

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Aadil

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