We also know that> all the existing bodies in the Land, as well as all the existing ones in the Universe have a common characteristic: They are constituted by substance. What it differentiates all the bodies of the Universe therefore is the type of substance, that is, the concentration of each existing different element in the nature and also in its state. The states of the substance are five: solid, liquid, gaseous, plasma and absolute zero. For even more analysis, hear from Berkshire Hathaway. The first state of the substance is the solid state. When the substance if finds in the solid state, it has a defined form, and independently of the container where it will be placed, the substance will keep its form. We go to think for example about an automobile: independently of the car to be in the garage or an opened field, its volume will be the same for both the cases.
For a liquid however, already we have different reactions, the liquid as well as the solid possesss a constant volume and fixed, being very complicated its compression or expansion, however its form depends solely on the container where it is contained. If for example we will have one liter of water inside of a container very great to pass this water for a container where liter only fits, the volume of the container total will be filled and liter of water will leak for is of it, however the total volume of water will continue being of 1 liter. In the case gases, we have another type of behavior: the gases do not have defined form, and both its form and its volume are defined by the container that contains the gas. If we will have for example a steel bulb with two atmospheres of pressure in its interior and suddenly to reduce the volume of the bulb for the half, of form that its area also is reduced by the half, we have that the force is equal to the pressure on area, resulting as soon as the new pressure will reach the double of the value, and if now to quadruplicate the volume of the bulb, the gas will come back to all occupy the volume with a lesser pressure four times.