![]() When a substance undergoes chemical change, the chemical properties of the substance changes and it is transformed into a different substance with different chemical composition. Definition of Chemical ChangeĬhemical Change is defined as the process in which the atoms of one or more substances are rearranged or combined to form a new substance. For example, Melting of wax, boiling of water, dissolving sugar in water, chopping wood, crumpling of paper, etc. original characteristics of the object remain unchanged. ![]() The same element or compound exists prior, or after change, i.e. These changes are volatile in that can be reversed using simple physical methods. solid, liquid, gas), etc., that, without making any change in their molecular composition. Physical change is a process in which the substance experiences change in its physical properties like shape, size, colour, volume, appearance, state (i.e. shape, size, color etc.Ĭhange in chemical properties and composition of the substance.Ībsorption and evolution of energy do not take place.Ībsorption and evolution of energy take place, during reaction. ![]() Tearing of paper, melting/freezing of water, cutting of trees, etc.īurning of wood/trees/paper, rusting of iron, setting of curd, etc.Ĭhange in physical properties of the substance, i.e. Physical change refers to a change in which the molecules are rearranged but their internal composition remains same.Ĭhemical Change is a process in which the substance transforms into a new substance, having different chemical composition. Example of both changes occuring simultaneously.Content: Physical Change Vs Chemical Change So, take a read of the article to understand the difference between physical change and chemical change. On the other hand, a chemical change is one that affects the internal structure of the substance, so as to form a new substance.
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