Internal pressure

Under an internal pressure refers to the intrinsic pressure that a substance or a system exerts on the surrounding area and thus seeking an extension of himself. The most important example for an internal pressure is the saturation vapor pressure, which is always fluid and each solid as its own. However, the concept of system here is very broad and it is for example also in cabin pressure, boiler pressure, cavity pressure and tire pressure to internal pressures. The antagonist is an internal pressure of the external pressure, that is, the pressure acting from the outside on the system and its compression aims.

• Thermodynamics