Question

expand the physical origins of thermal expansion​

Answer 1

Answer:

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Answer 2

Expand the physical origins of thermal expansion​

• When the temperature is increased, the kinetic energy of atoms increases, and the atoms vibrate and move, resulting in a greater average separation of atoms and thus thermal expansion,i.e., the vibrational origin of thermal expansion.
• Thermal expansion is the tendency of matter to change in volume in response to temperature alterations.
• When a substance is heated, its particle move more and thus maintain a greater average seperation.
• since thermosets are used in solid formy  they undergo linear thermal expansion.