atmospheric pressure 760

The maximum height of mercury, which can be supported by the atmospheric pressure provides a measure of that pressure. A standard pressure of one atmosphere (1 atm) is defined as the pressure that will support a column of mercury of 76 cm..

Atmospheric Pressure - 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 10 1 8 kg (i.e., five million billion tons). This weight exerts a pressure on the surface of the ..

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 10 1 8 kg (i.e., five million billion tons). This weight exerts a pressure on the surface of the earth which is called atmospherich..

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 10 18 kg (i.e., five million billion tons..

Atmospheric pressure is measured by an instrument known as barometer. This consists of a glass tube closed at one end and filled with pure mercury. The tube is then inverted into an open vessel of mercury. The mercury level in the tube drops until the pressure due to ..

Some chemical reactions need very high pressure to proceed. For e.g., in the manufacture of ammonia from nitrogen and hydrogen (Haber's process), a pressure of over 200 atmosphere is required, in presence of a catalyst iron and a temperature of 450 o C to 500 o ..

High humidity means high water vapour pressure outside and it results in lower rate of transpiration and as the humidity decreases rate of transpiration increas..

Standard Temperature and Pressure - The volume of a given mass of a gas changes directly with temperature and inversely with pressure. Volumes can be rationally compared only if they are at a certain fixed conditions of temperature and pressure. By convention, standard..

The volume of a given mass of a gas changes directly with temperature and inversely with pressure. Volumes can be rationally compared only if they are at a certain fixed conditions of temperature and pressure. By convention, standard temperature and pressure condition ..

.e., the volume of the container. The unit of volume: 1 litre = 1 dm 3 = 1000 cm 3 or 1000 ml. Pressure exerted by a gas is the average force exerted due to the bombardment of the particles on the sides of the container per unit area of the container. The unit of pressure: 1 ..