1.

Give reason: Temperature is said to be a measure of average kinetic energy of the atoms/molecules of the body.

Answer»

1. Matter consists of particles which are in continuous vibrational motion and thereby possess kinetic energy.

2. When external energy is provided to these particles, internal energy of particles increases.

3. This increase in internal energy is in the form of increased kinetic energy of atoms/molecules and raises temperature of body (except at melting or boiling point of the body).

4. Greater the kinetic energy, faster the atoms/ molecules move and temperature of body becomes higher.

5. Thus, temperature of body is directly proportional to its kinetic energy. Hence, temperature is said to be a measure of average kinetic energy of the atoms and molecules of the body.



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