Most would expand, greater volume, lesser density. Density= mass/volume
What would be true of the densities of most solids and liquids at a temperature higher than the quoted one?
To determine what would be true of the densities of most solids and liquids at a higher temperature, we need to consider the general behavior of density when temperature changes.
In general, for most substances, as temperature increases, the density decreases. This is because, as temperature increases, the particles of matter tend to move farther apart, resulting in an increase in the volume of the substance. As a result, the density decreases because density is calculated as mass divided by volume.
So, if we consider solids and liquids, which have a fixed volume but undergo expansion with an increase in temperature, we can conclude that at a temperature higher than the quoted one:
1. Most solids and liquids would expand: The increase in temperature causes the particles within these substances to vibrate more vigorously, resulting in an increase in the average distance between particles. This expansion leads to an increase in the volume of the substance.
2. The greater volume would lead to a lesser density: Since density is the ratio of mass to volume, if the volume increases while the mass stays relatively constant, the density will decrease. Therefore, at a higher temperature, most solids and liquids will have a lesser density.