Can anyone, a experienced person tell whether breaking of an egg is chemical or a physical change.. Coz no one has given a expected answer... Plz do it with interest coz if you don't know it don't reply... Someone has put tested, someone has put cooking.. What is all that.. So plz reply.. Thank you
A physical change does not alter the chemical nature of the substance. Freezing of water to form ice (solid state) H2O(l) => H2O(s) only changes state of existance but not its chemistry.
A chemical change alters the chemical nature of the substance producing new substances with different properties than the ones it was formed from.
Reaction of 2H2(g) + O2(g) => 2H2O is a chemical change where properties of water are different than properties of molecular hydrogen and oxygen.
So, for your question, the act of breaking an egg is a physical change because the product (broken egg) doesn't change chemically into a different substance. However, cooking an egg (all methods) gives substances with different chemical and physical properties and is a chemical change.
The breaking of an egg can be considered both a physical and a chemical change, depending on how you define and interpret the changes that occur.
From a physical perspective, when an egg is broken, the shell is physically fractured into smaller pieces. This is a physical change because no new substances are formed, and the composition of the egg itself remains unchanged. The broken shell can be physically manipulated and reassembled without any alteration to its chemical properties.
However, from a chemical viewpoint, there is a reaction occurring when an egg is broken. Inside the shell, an egg consists of various components such as proteins, fats, and water. When the shell is broken, the proteins in the egg undergo denaturation, which is a form of chemical change. Denaturation causes the proteins to unfold and change their three-dimensional structure, resulting in a different texture and consistency of the egg.
To determine whether it is primarily a physical or chemical change, it is important to consider the level of analysis. At a macroscopic level, the breaking of an egg can be considered primarily a physical change. However, once we examine the changes occurring at the molecular level, it involves a combination of physical and chemical changes.
Regarding the answers you mentioned earlier, "tested" and "cooking" are unrelated terms that may have been mistakenly posted. It is always beneficial to double-check the answers or consult reliable sources to ensure accuracy.