Stream distillation-purification of organic compounds

[Frigus]

when we transfer water vapours from steam generator isn't it like that the pressure of atmosphere around the organic mixture will increase so we have to boil the organic mixture more so as to make equal the pressure of atmosphere which is water vapour pressure + pressure of atmosphere is equal to the pressure of the organic mixture, as we have to reduce the boiling point of organic mixture but as way do like this shouldn't the boiling point of the mixture will increase.

 

[Borek]

when we transfer water vapours from steam generator isn't it like that the pressure of atmosphere around the organic mixture will increase

No. The vessel is open.

 

[Frigus]

No. The vessel is open.

How water vapour can reduce the boiling point as it is increasing the pressure surrounding the organic mixture.

 

[chemisttree]

Not reducing the boiling point at all. It is forming a complex with water vapor and being carried along with the steam.