how is the physical change differ from the chemical change
Answers
Explanation:
PHYSICAL CHANGE CHEMICAL CHANGE
Meaning Physical change refers to a change in which the molecules are rearranged but their internal composition remains same. Chemical Change is a process in which the substance transforms into a new substance, having different chemical composition.
Example Tearing of paper, melting/freezing of water, cutting of trees, etc. Burning of wood/trees/paper, rusting of iron, setting of curd, etc.
Nature Reversible Irreversible
Original matter Can be recovered Cannot be recovered
Involves Change in physical properties of the substance, i.e. shape, size, color etc. Change in chemical properties and composition of the substance.
Product Formation No new product is formed. New product is formed.
Energy Absorption and evolution of energy do not take place. Absorption and evolution of energy take place, during reaction.
Answer:
Physical change is the change which can be reversed. This is temporary change. Example of physical change is melting of ice.
Chemical change is the change which cannot be reversed. This is permanent change. Example of chemical change is burning of paper.