Question

what is chemical and physical change?what is heat?​

Answer 1

Answer:

The changes in which new substance is formed are called chemical change.

The process in which no new substance is formed is termed as Physical change.

Heat is form of energy.

Answer 2

Hey MATE!!!

Changes that are reversible in nature and show no chemical change in a substance are called physical changes.

Changes that are irreversible in nature and show some chemical imbalance are k/a chemical changes.

Heat in thermodynamics is defined as the moved energy from one object to another.

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