The pressure of confined air is p. If the atmospheric pressure is P, then :-

The normal atmospheric pressure is :

For a solution at atmospheric pressure

A cylidrical vesel containing a liquid is closed by a smooth piston of mass m as shown in the figure. The area of cross section of the piston is A. If the atmospheric pressure is P_0 , find the pressure of the liquid just below the piston. ,

A cylindrical vessel containing a liquid is closed by a smooth piston of mass m as shown in the figure. The area of cross section of the piston is A. If the atmospheric pressure is P_0 , find the pressure of the liquid just below the piston. ,

Figure shows a crude type of atomizer. is compressed, air flows swiftly through tube BC causing a reduced pressure in the particles of the vertical to Liquid rises in the tube, enters BC and is sprayed out. if the pressure in the bulb is P_(a) + P , where P is the gauge pressure and P_(a) is the atmospheric pressure, v is the speed of air in BC , find how large would v need to be to cause the liquid to rise to BC . Density of air = 1.3 kg//m^(3) .

A rectangular container moves with an acceleration a along the positive direction as shown in figure. The pressure at the A in excess of the atmospheric pressure p_(0) is (take rho as the density of liquid)

Figure shows a capillary tube of radius r dipped into water. If the atmosphere pressure is P_0 , the pressure at point A is

Liquid pressure and atmospheric pressure

A constant volume hydrogen thermometer was used to measure the temperature of a hot bath. The excess pressure in the bulb over the atmospheric pressure is found to be equal to 114cm of Hg. At 0^(@)C the pressure in the bulb is equal to that of the atmosphere. Find the temperature the hot bath. [ Hint ( P)/( T) = ( P_(0))/( T_(0)) ]

Asertiion : Inspirations occurs when there is a negative pressure in the lungs with respect to the atmospheric pressure. Reason : During inspiration, a decrease in pulmonary volume increases the intre-pulmonary pressure than atmospheric pressure which forces the air from outside to moe into the lungs.