How are the particles in a block of iron affected when the block is melted?

Answer 1

They gain more energy and lose their lattice structure.

Positive metal nuclei are drawn to negative electrons from the d-orbitals, forming malleable rows and columns of a metal lattice. Typically, an iron block has a lattice structure.

Atoms gain kinetic energy when heat is applied (such as during melting), which causes them to move around and overcome the electromagnetic forces holding the lattice together.

In the absence of these, the atoms become very disorganized and transform into a molten mess.

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Answer 2

Noah Aldrich

The particles in an iron block change from a solid to a liquid state, becoming more disordered and free to flow, when the particles gain energy and are able to move faster and overcome the forces holding them in a solid structure.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.