Your company produces glycerol, an important precursor of explosives and antifreeze. a chemical reactor in your process produces a saturated liquid stream containing 83 kmol/hr of a mixture of 80% glycerol and 20% of a less volatile impurity. the price that you can sell the glycerol-containing product depends on both the quantity and the purity (mole fraction glycerol) of the product;
$12500*(purity-0.8)2/kmol produced
so, you propose to design a single-stage flash drum that will improve the purity of your glycerol product.
a) what is the maximum amount of money you could make per hour by selling glycerol product?
b) what fraction of the liquid feed should you vaporize in the single-stage flash drum in order to make the
most money?

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.