Question

During batch distillation composition change occurs.
A. Heavy component increases in still
B. Distillate formed from condensation of vapor
C. Vapor formation occurs in still
D. As time passes composition of distillate decreases
Choose the correct answer from the options given below:

• A. A, B, C, D
• B. B, D, A, C
• C. C, A, B, D
• D. C, B, D, A

Hint:

Batch distillation is defined by the Rayleigh Equation. Unlike continuous distillation where compositions are constant at any point, in batch distillation, the "still" is always getting "heavier" (less volatile) as time ticks forward.

Answer 1

The Correct Option is D