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The vapour pressure of water at 20^@C is...

The vapour pressure of water at `20^@C` is 17.54mm Hg. then the vapour pressure of the water in the apparatus shown after the piston is lowered, decreasing the volume of the gas above the liquid to one half of its initial volume (temp. constant) is

A

8.77 mm Hg

B

17.54 mm Hg

C

35.08 mm Hg

D

between 8.77 and 17.54 mmHg

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The correct Answer is:
B
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AAKASH SERIES-SOLUTIONS -Objective Exercise -2
  1. Henry’s law constant for the molality of methane in benzene at 298 K i...

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  2. 6 g. of a non volatile solute is dissolved in 90g. of water, such that...

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  3. The vapour pressure of water at 20^@C is 17.54mm Hg. then the vapour p...

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  4. An aq. solution containing 64% by weight of volatile liquid 'A' (molec...

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  5. The weight of urea to be dissolved in 100 g. of water to decrease the ...

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  6. 139.18 g of glucose is added to 178.2 g of water the vapour pressure o...

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  7. The relative lowering of vapour pressure of 0.2 molal solution in whic...

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  8. Vapour pressure of an aqueous solution is 2% less than that of the sol...

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  9. The amount of Glucose to be dissolved in 500g of water so as to produc...

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  10. A Current of dry air was first passed through the bulb containing solu...

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  11. At 20^@C, the vapour pressure of diethyl ether is 442mm. When 6.4g. of...

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  12. The vapour pressure of pure water at 25^@C is 30 mm. The vapour pressu...

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  13. The vapour pressure of a pure liquid 'A' is 60mm, at 25^@C. It forms a...

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  14. Two liquids A and B form an Ideal solution. At 300K, the V.P of soluti...

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  15. At certain temperature, the solution of benzene in toulene exihibits t...

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  16. A solute has 2:3 molar ratio of toulene to benzene. The vapour pressur...

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  17. If 2 moles of A and 3 moles of B are mixed to form an ideal solution v...

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  18. The vapour pressure of a solvent decreased by 10 mm of mercury, when a...

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  19. The vapour pressure of pure benzene is 640 mm at 298K. A solution of a...

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  20. The vapour pressure of water at room temperature is 23.8 mm Hg. The va...

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