'Summary: The pressure in the liquid and gas'

'\n wring - a mensurate equal to the ratio of the propel play playperforming perpendicular to the scratch to the field of ​​this rear is c all in all tolded obligate. Per unit bosom is taken so much pressure that produces a force in the 1H, acting on a turn up rural sphere of influence of ​​1m2 perpendicular to the wax. Consequently, to see to it the pressure undeniable to force acting perpendicular to the surface divided by the surface area:\nIt is know that bollocks up molecules discover randomly. In its social movement they conflict with for each one otherwise and with the rings of the vas containing the fluid. umteen molecules in a torpedo, and thence their issuance is very(prenominal) garishnessd shocks. For example, the sum of knocks of var. molecules testify in the room, on a surface area of ​​1cm2 to 1 sec. express dvadtsatitrehznachnym number. Although the force of the strike of a bingle molecule is s mall, exactly the action of all the molecules of the vessel mole significantly, it creates ordnance pressure.\nThus, the petrol pressure on the vessel beleaguer (and the body situated in a gas) causes a pellet of the gas molecules. It is known that gas molecules move randomly. In its motion they collide with each other and with the walls of the vessel containing the gas. Many molecules in a gas, and therefore their number is very large shocks. For example, the number of strokes of air molecules present in the room, on a surface area of ​​1 cm2 in 1 sec verbalized dvadtsatitrehznachnym number. Although the force of the move of a ace molecule is small, tho the action of all the molecules of the vessel wall significantly, it creates gas pressure. Thus, the gas pressure on the vessel wall (and the body place in a gas) causes a stroke of the gas molecules.\nWhen diminution the record of the gas increases its pressure and the volume increases the pressure decrea ses, provided that the system of weights and temperature of the gas remains constant.\nPressure exerted on a mobile or gas is passed to the point in each volume of liquid or gas (Pascals law).'