Question

When a metal such as copper is heated it expands what happens to the particles when a solid is heated

Answer 1

Explanation:

When a metal is heated the kinetic energy in the particles increases and hence the force pf attraction decreases among the particle (as electrons try to escape due to kinetic energy). This causes the metal to expand

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Answer 2

Answer:

When a metal is heated the kinetic energy in the particles increases and hence the force pf attraction decreases among the particle (as electrons try to escape due to kinetic energy). This causes the metal to expand.

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