some consequences of liquid pressure
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Answer:
Pressure Effects. Changes in presure have very little effect on the volume of a liquid. Liquids are relatively incompressible because any increase in pressure can only slightly reduce the distance between the closely packed molecules. If the pressure above a liquid is increased sufficiently, the liquid forms a solid.
✨✨Some consequences of liquid pressure are✨✨
✴️ In sea water, the pressure at a certain depth in sea water is more that that at the same depth in river water : The reason is that the density of sea water is more than the density of river water.
✴️The water of a dam is made thicker at the bottom :
The thickness of its wall increases from top towards the bottom. The reason is that the pressure exerted by a liquid increases with its depth. Thus as depth increases, more and more pressure is exerted by water on the wall of dam. A thicker wall is required to withstand a greater pressure, therefore,the wall of the dam is made with thickness increasing towards the base. The increasing length of arrows in water shows the increasing pressure on the wall of dam towards the bottom.
✴️Water supply tank is placed high :
To supply water in a town , the tank to store water for supply is made at a sufficient height. The reason is that as greater is the height of tank, more will be the pressure of water in the taps of house. Thus for a good supply of water, the height of the supply tank must always be a few metre higher than the level at which supply of water is to be made.
✴️Diver's suit :
The sea divers need special protective suit to wear because in deep sea, the total pressure exerted on the diver's body is much more than his blood pressure. To withstand it, he needs to wear a special protective suit made from glass reinforced plastic or cast aluminium. The pressure inside the suit is maintained at one atmosphere.
✴️Size of gas bubble inside the water : It is noticed that as the gas bubble formed at the bottom of a lake, rises, it grows in size. The reason is that when the bubble is at the bottom of lake, total pressure exerted on it is the sum of the atmospheric pressure and the pressure due to water column. As the gas bubble rises, due to water column decreases, so the total pressure exerted on the bubble decreases.