Question

What is thermal expansion..

Answer 1

hi mate.....

here's ur answer........

Heat is a form of energy...
Therefore is also known as thermal energy also......

Thermal expansion is the expansion caused by heat between two bodies...

Through thermal expansion a body may change its shape , size , colour , odour due to an increase in temperature.

Also when heat is produced the kinetic energy also increases with increase in temperature.

Hope it helps☺

Answer 2

Answer:

Thermal expansion is the tendency of matter to change in volume in response to temperature alterations. When a substance is heated, its particles move more and thus maintain a greater average separation. Since thermosets are used in solid form they undergo linear thermal expansion.