Question

how an increase in temperature can change the density of a substance

Answer 1

Answer:

When a substance is heated its volume increases and so the density decreases. ... In liquids and gases, as the temperature increases, volume increases and therefore density decreases considerably.

Answer 2

Explanation:

Temperature Affects Density

The density of water can also be affected by temperature. When the same amount of water is heated or cooled, its density changes. When the water is heated, it expands, increasing in volume. ... The warmer the water, the more space it takes up, and the lower its density.