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Stanley514
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What defines density of chemical substances at the same pressure and temperature?
Density of molecular substances is defined by forces of attraction and repulsion between its molecules. I wish to know why hydrogen molecules, for example, repulse each other much more than say, Lithium molecules.dextercioby said:What type of density are you talking about? Mass density?
Stanley514 said:Density of molecular substances is defined by forces of attraction and repulsion between its molecules.
Density is a measure of how much mass is contained within a given volume of a substance. It is often expressed in units of grams per cubic centimeter (g/cm^3) or kilograms per cubic meter (kg/m^3).
Density is calculated by dividing the mass of a substance by its volume. The equation for density is: density = mass/volume.
The density of a chemical substance can be affected by temperature, pressure, and the chemical composition of the substance. For example, as temperature increases, the volume of a substance typically increases, causing the density to decrease.
Density is a physical property of a substance. This means that it can be measured and observed without changing the chemical composition of the substance.
Density is an important property for scientists to study because it can provide valuable information about the physical characteristics and behavior of a substance. It can also help identify substances and aid in determining the purity of a substance.