Correct answer
C. D-0.2
Explanation
The correct answer is D-0.2.
An aqueous solution of methanol is to be distilled in a tray column. High pressure steam is available as a source of heat. For a given reflux ratio and overhead composition, two options are being explored; (i) a reboiler is used and (ii) no reboiler is used but steam is fed directly to the bottom of the column. As compared to option (i), in option (ii) ________?
Tray spacing in a distillation column of dia 10-12 ft. used in petroleum refinery may be around ________ inches?
Addition of nickel to copper improves its________?
Separation of solid suspended in liquid into a supernatant clear liquid and a denser slurry employs a process termed as the________?
For a cylindrical internally pressurised vessel, which of the following closure types would withstand highest pressure, if each closure is of the same material and thickness?
Gibbs free energy of a pure fluid approaches ________ as the pressure tends to zero at constant temperature?