Water is made of two hydrogen atoms and one oxygen atom bonded together. Julia is describing how water undergoes a physical change when it boils. She says that the particles shift to be farther apart and that the oxygen and hydrogen separate. She also says that the total mass of the steam is the same as the initial water, and that heat energy was required to cause the change. She finishes her description by saying that the steam can be turned back into water if it is cooled.
Which is the mistake in her description?
Answers
Answered by
2
Simply, hydrogen and oxygen atoms are not getting pulled away from each other. rather water (H2O) molecules are getting more and more kinetic energy and becoming vapour. it's not a chemical change but physical change. no new substance is made. water before was water after, just it transformed into gas state when it attained heat.
Similar questions