The vapour pressure of benzene toluene and xylene are 70,20and 10torr respectively. Find values of vapour pressures possible for an equimolar binary or tertiary solution of these at 20°c?
Answers
Answer:
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ANSWER
In the equimolar binary mixture, the mole fraction of two components will be 0.5 each.
When different equimolar binary mixtures are formed, the total pressure is as calculated below.
P
T
=
2
1
(75+22)=48.5 torr
P
T
=
2
1
(75+10)=42.5 torr
P
T
=
2
1
(22+10)=16 torr
In the equimolar ternary mixture, the mole fraction of two components will be 0.33 each.
When the equimolar ternary mixture is formed, the total pressure is as calculated below.
P
T
=
3
1
(75+22+10)=35
3
2
torr
In all these case the value 53
2
1
is not obtained.
Answer:
In the equimolar binary mixture, the mole fraction of two components will be 0.5 each.
When different equimolar binary mixtures are formed, the total pressure is as calculated below.
P
T
=
2
1
(75+22)=48.5 torr
P
T
=
2
1
(75+10)=42.5 torr
P
T
=
2
1
(22+10)=16 torr
In the equimolar ternary mixture, the mole fraction of two components will be 0.33 each.
When the equimolar ternary mixture is formed, the total pressure is as calculated below.
P
T
=
3
1
(75+22+10)=35
3
2
torr
In all these case the value 53
2
1
is not obtained.