Two Liquids with pure state vapour pressure in ratio 2:1 with molar ratio 1:2 moles in vapour pressure
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Vapour pressure of liquid 1 , P1 = 2 units
Vapour pressure of liquid 2, P2= 1 units
Moles of liquid 1 = 1
Moles of liquid 2 = 2
mole fraction of liquid 1 = 1 / 3
mole fraction of liquid 2 = 2 / 3
Using Raoult' s law :
Partial pressure of liquid 1 = Vapour pressure of liquid 1
Partial pressure of liquid 1 = 2 ( 1/ 3 ) = 2 / 3
Partial pressure of liquid 2 = Vapour pressure of liquid 2 mole fraction of liquid 2
Partial pressure of liquid 2 = 1 ( 2 / 3 ) = 2 / 3
Total pressure p = partial pressure of 1 + partial pressure of 2 = 2/3+2/3=4/3
Mole fraction of liquid 1 in vapour phase = partial pressure of liquid 1 / total vapour pressure = (2/3) / (4/3) = 1/2
Mole fraction of liquid 2 in vapour phase = partial pressure of liquid 2 / total vapour pressure = (2/3) / (4/3) = 1/2
•°•Ratio of moles = 1 : 1
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Vapour pressure of liquid 2, P2= 1 units
Moles of liquid 1 = 1
Moles of liquid 2 = 2
mole fraction of liquid 1 = 1 / 3
mole fraction of liquid 2 = 2 / 3
Using Raoult' s law :
Partial pressure of liquid 1 = Vapour pressure of liquid 1
Partial pressure of liquid 1 = 2 ( 1/ 3 ) = 2 / 3
Partial pressure of liquid 2 = Vapour pressure of liquid 2 mole fraction of liquid 2
Partial pressure of liquid 2 = 1 ( 2 / 3 ) = 2 / 3
Total pressure p = partial pressure of 1 + partial pressure of 2 = 2/3+2/3=4/3
Mole fraction of liquid 1 in vapour phase = partial pressure of liquid 1 / total vapour pressure = (2/3) / (4/3) = 1/2
Mole fraction of liquid 2 in vapour phase = partial pressure of liquid 2 / total vapour pressure = (2/3) / (4/3) = 1/2
•°•Ratio of moles = 1 : 1
I hope it will help u✌✌ plz mark it as a brainlist ans. plzzzzzz
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