What is difference between pure vapour pressure and partial pressure

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Q. The vapour pressure of pure water is

23.8 m m H g

25^{0} C

. What is the vapour pressure of

2.50 m o l a l C_{6} H_{12} O_{6}

The mole fraction of component A in vapour phase is $x_{1}$ and mole fraction of component A in liquid mixture is $x_{2} (P_{A}^{0}$ = vapour pressure of pure A; $P_{B}^{0}$ = vapour pressure of pure B). What is the total pressure?

5 mL of acetone is mixed with 100 mL of H₂O. Vapour pressure of water above the solution is:

Q. The vapour pressure of pure water is 23.8 mm Hg at

25^{0} C

What is the vapour pressure of 2.50 molal

C_{6} H_{12} O_{6}

Q. Two liquids

A

and

B

form an ideal solution. What is the vapour pressure of solution containing

2

moles of

A

and

3

moles of

B

300 K

[Given: At

300 K

, vapour pressure of pure liquid

A (P_{A}^{\circ}) = 100 t o r r

, Vapour pressure of pure liquid

B (P_{B}^{\circ}) = 300 t o r r]

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