Per cubic centimeter 1 g (1k/cm3)

Per ml 1g( 1k/ml).

1 kg per liter (1000g/liter).

The international quasi-unit is one thousand kilograms per cubic meter (1000kg/m3).

The density of any point p in an object is defined as:

M is the mass of the volume element. In the centimeter-gram-second system, the unit of density is gram/cubic centimeter; In the international system of units and China's legal units of measurement, the unit of density is kg/m3.

No matter what substance, no matter what state it is in, with the change of temperature and pressure, the volume or density will change accordingly. The relationship between temperature T, pressure P and density ρ (or volume) is called the equation of state. The volume of a gas varies significantly with the pressure it is subjected to and the temperature it is at.

Extended data

For general gas, if the density is not large and the temperature is far from the liquefaction point, its volume changes with pressure close to the ideal gas; For high-density gases, the above equation of state should also be modified appropriately.

The density of human body is only 1.02 g/cm? Only slightly denser than water. Gasoline is less dense than water, so any oil stains you see on the road will float on the water. The density of seawater is greater than that of water, so the human body floats easily in seawater. (Dead Sea density reaches 1.3g/cm? It is denser than human beings, so people can float in the dead sea. )

Baidu Encyclopedia: Density