Question

Pick out the correct statement.

a.

The slope of the stripping line is always less than unity.

b.

For a given separation in a binary distillation column, with increase in reflux ratio (above the minimum reflux ratio), the fixed cost of the distillation column first increases and then decreases.

c.

In Ponchon-Savarit method of no. of theoretical plate determination, the stripping and rectifying operating lines are vertical at total reflux.

d.

Kremsor-Brown-Souder's equation is used to calculate the efficiency of a plate tower.

Answer: (c).In Ponchon-Savarit method of no. of theoretical plate determination, the stripping and rectifying operating lines are vertical at total reflux.

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Q. Pick out the correct statement.

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