Question

25) Mention two effects of heat
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Answer 1

Answer:

Expansion: When heat is added to any substance, the particles gain energy and vibrates(with more speed) or vigorously about their fixed positions, forcing each other further apart. ...

Increase in temperature: When heated there is increase in kinetic energy and particles move at higher speed. ...

Answer 2

Answer:

Following are the effects of heating

1) Expansion:

When heat is added to any substance, the particles gain energy and vibrates(with more speed) or vigorously about their fixed positions, forcing each other further apart.

Order of expansion Gas>Liquid>Solid

2) Increase in temperature:

When heated there is increase in kinetic energy and particles move at higher speed. Since temperature is a measure of average Kinetic Energy, the temperature increases.