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Write 5 difference between physical and …

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Write 5 difference between physical and chemical change?

    • Posted by Shivam Kumar 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Gaurav Seth 7 years, 2 months ago

    <th>BASIS FOR COMPARISON</th> <th>PHYSICAL CHANGE</th> <th>CHEMICAL CHANGE</th>
    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.

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