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In a vertical thermosyphon re-boiler, it is due to the __________ difference that the circulation in the liquid occurs, between vapour-liquid mixture from the re-boiler and the liquid through the down-comer to the re-boiler.

In a vertical thermosyphon re-boiler, it is due to the __________ difference that the circulation in the liquid occurs, between vapour-liquid mixture from the re-boiler and the liquid through the down-comer to the re-boiler. Correct Answer Density

As the liquid gets heated, its volume increases and hence its density decreases, this in turn cause a driving force for the lighter fluid to move upwards and reach the Distillation column.

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