write the steps of tea and mark whether they are physical changes or chemical changes.
Answers
Answer:
s making a cup of tea a physical or chemical change?
According to current understanding, boiling the water is a physical change, putting the teabag in with the result of making tea may also be physical, since no compounds are actually changing their molecular structure. Nothing is turning from one chemical into a different chemical.
Explanation:
Physical change only (as per scientists).
Tea (and tea leaves) contain alkaloids: caffeine, tannins, nicotine, strictine etc.
Tea leaves contain (non ionic) organic substances like these. They are nitrogen based compounds which are slightly acidic or neutral components.
While preparing tea we boil tea with sugar and water. In the process the various chemical substances from the tea power (or leaves) and sugar dissolve in water. Higher temperature dissolves more.
The color and physical shape are changed only. There is no chemical molecular structural change in any of the substances. The basic taste of milk, tea, water and sugar are all mixed.
When lemon is added some change could occur chemically. Otherwise, it is a physical change only.