Question

ভৌত ও রাসায়নিক পরিবর্তনের তিনটি পার্থক লেখে​

Answer 1

Answer:

PHYSICAL CHANGES-

1.PHYSICAL CHANGES ARE TEMPORARY AND REVERSIBLE.

2.WHEN A SUBSTANCE UNDERGOES CHANGES

IN ITS PHYSICAL PROPERTIES THEN IT IS CALLED PHYSICAL CHANGE.

3.IT IS NOT NECESSARILY ACCOMPANIED BY THE ABSORPTION OR RELEASE OF HEAT AND LIGHT.

WHEREAS

CHEMICAL CHANGES-

1.CHEMICAL CHANGES ARE PERMANENT AND IRREVERSIBLE.

2.WHEN TWO OR MORE SUBSTANCE REACT IN SUCH A WAY THAT THERE IS A FORMATION OF ONE OR MORE NEW SUBSTANCES THEN IT IS CALLED A CHEMICAL CHANGE.

3.IT IS NECESSARILY ACCOMPANIED BY THE ABSORPTION OR RELEASE OF HEAT AND LIGHT.

Explanation:

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