Question

5. Compare the energy changes involved during a physical and a chemical change

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Answer 1

Answer:

Physical Change: There is no addition or deduction of energy during the physical change, but the energy required for completion of change is released when the change is reversed. Chemical Change: Energy like light, pressure, heat energy is required for chemical changes.

Answer 2

This is the exact answer

BY class 8G

((MD Zaid Ansari))