Question

what are the applications of atmospheric pressure

Answer 1

The atmosphere is the layer of air around the earth. It extends up to 1000 km above the surface of the earth and has a total weight of 4.5 1018 kg (i.e., five million billion tons). This weight exerts a pressure on the surface of the earth which is called atmospheric pressure. At sea level it is about 105 Pa. We do not normally feel the large atmospheric pressure because the pressure inside our bodies is almost the same as the external pressure and so it is balanced.

At high altitudes the air pressure is less, therefore the breathing is difficult and nose bleeding may occur. Hence, modern aircrafts have pressurised cabins in which air pressure is increased sufficiently to safeguard the passengers and the crew.

Answer 2

Answer_____♥️

Applications of pressure:-

1) A syringe consists of a tight-fitting piston which moves in a cylinder, with a nozzle at one end also works with the help pressure.

2)When air is sucked out of a drinking straw ,the air pressure inside it decreases and the atmospheric pressure outside forces the liquid to go inside the straw.

3)A vacuum cleaner has a fan inside that creates a low pressure inside the device . Consequently,air and dirt particles are sucked into the device.

4)Siphon is only a rubber cylinder utilised for exchange fluid with the help of pressure.