After a piece of copper wire from a hardware store is heated and returned to room temperature, it becomes softer. This is because: a. the bonds have been weakened b. It has fewer atomic level defects c. it has more atomic level defects d. the density is lower e. there is more space inside the crystal lattice

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eemorales7691 eemorales7691

13-12-2022
Chemistry

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After a piece of copper wire from a hardware store is heated and returned to room temperature, it becomes softer. This is because: a. the bonds have been weakened b. It has fewer atomic level defects c. it has more atomic level defects d. the density is lower e. there is more space inside the crystal lattice

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ShubhamSrivastava ShubhamSrivastava · Answer 1 · 2022-12-17T11:53:24+01:00

After a piece of copper wire from a hardware store is heated and returned to room temperature, it becomes softer. This is because: a. the bonds have been weakened.

What is heating of a metal?

Metals are annealed to reduce stress, soften the metal, boost ductility, and enhance grain structure. Welding can result in a metal with uneven temperatures, even molten portions next to areas that are at normal temperature, if the preheating process is not done properly.

When a metal is heated, the particles' kinetic energy rises and the force of attraction between them weakens as a result (as electrons try to escape due to kinetic energy). The metal enlarges as a result of this.

There are four different types of heat treatment of a metal: Annealing, hardening, quenching, and stress relief are examples of common heat treating techniques, each of which has a distinct procedure and yields various outcomes.