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  • Question 1
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    The pressure of two pure liquid A and B which form an ideal solutions are 400 mm Hg and 800 mm Hg respectively at temperature T. A liquid containing 3 : 1 molar composition pressure can be varied. The solutions is slowly vaporized at temperature T by decreasing the applied pressure starting with a pressure of 760 mmHg. A pressure gauge (in mm) Hg is connected which given the reading of pressure applied.

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    The reading of pressure gauge at bubble point is :

  • Question 2
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    The reading of pressure gauge at which only vapour phase exists is

  • Question 3
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    The vapour pressure lowering caused by the addition of $$100 \,g$$ of sucrose (molecular mass = 342) to $$1000 \,g$$ of water if the vapour pressure of pure water at $$25 ^\circ C$$ is $$23.8 \,mm \,Hg$$

  • Question 4
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    $$5 \,cm^3$$ of acetone is added to $$100 \,cm^3$$ of water, the vapour pressure of water over the solution

  • Question 5
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    Directions For Questions

    The pressure of two pure liquid A and B which form an ideal solutions are 400 mm Hg and 800 mm Hg respectively at temperature T. A liquid containing 3 : 1 molar composition pressure can be varied. The solutions is slowly vaporized at temperature T by decreasing the applied pressure starting with a pressure of 760 mmHg. A pressure gauge (in mm) Hg is connected which given the reading of pressure applied.

    ...view full instructions

    The reading of pressure gauge at which only liquid phase exists

  • Question 6
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    If the pressure of the gas contained in a closed vessel is increased by $$ 20 $$ % when heated by $$ 273^{\circ} \,C $$  then it's initial temperature must have been: 

  • Question 7
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    Vapour pressure of a solution is

  • Question 8
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    Which of the following pairs will diffuse at the same rate through a porous plug?

  • Question 9
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    Which of the following solution in water possesses the lowest vapour pressure?

  • Question 10
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    To which of the following gaseous mixtures is Dalton's law not applicable?

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