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Mass Transfer
Mass Transfer Operations
GATE 2015
Medium

Identify the WRONG statement.

  • ASteam distillation is used for mixtures that are immiscible with water
  • BVacuum distillation is used for mixtures that are miscible with water
  • Steam distillation is used for mixtures that are miscible with water
  • DVacuum distillation columns have larger diameters compared to atmospheric columns for the same throughput

Explanation

Steam distillation is specifically used for water-IMMISCIBLE mixtures (to lower the effective boiling point using steam's partial pressure) — the statement that it's for miscible mixtures is wrong.

Source: GATE CH 2015 (2015)

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