Question

Use particle theory to explain that when a solid iron bar is heated why it no longer fits the holder

Answer 1

Answer:

There is no diagram, but no matter. Using particle theory/kinetic theory, as the molecules in the iron bar are heated, they gain kinetic energy (as well ss vibrational and rotational energy), and so the bar expands and no longer fits whatever holder the digram shows to be holding it.

Explanation: