How does increasing temperature affect matter?

1 Answer
Apr 15, 2016

Generally, increasing the temperature of matter causes expansion.


As the molecules receive heat energy they move faster and tend to spread out further from each other. Even on a molecular scale, billions of these small expansions result in noticeable expansion of the bulk material. This is why construction of civil works requires flexible joints and a careful matching of materials to prevent fatigue from stress that could lead to a failure of the material.