effect of particulate matter

Particulates - Particulate refers to 'finely divided solid or liquid particles suspended in air'. The size of particulates varies from about 0.0002 to about 500 (1 = 10 - 4 cm). In the polluted air, the number of particulate particles is as high as 10 1 1 per..

Dust, smoke, fumes, et..

Intensive investigation by scientists over the years led to the development of a mental model (the minuscule particles couldn't be actually seen at that time) known as 'dynamic particle model'. All matter is assumed to be made up of particles that are very small, which may be atoms, mole..

When we look at a glass of still water on the table, it seems incredible that millions of molecules are moving about restlessly inside it. A British botanist called Robert Brown, however, discovered evidence of this movement over 200 years ago. He was observing through a microscope some very tiny ..

Effect of Temperature on Matter..

Pressure has little effect on the state of solids and liquids as the inter-particle distance is already minimized in these situations. However, the effect of pressure in case of gases is considerabl..

The temperature effect on heating a solid varies depending on the nature of the solid and the conditions required in bringing the chang..

Effect of Temperature and Pressure on States of Matter - When we heat a solid, we add energy to the system increasing the vibration of the particles. Eventually these particles break free from their binding forces and melt. The normal melting point of a crystal is the temperatur..

When we heat a solid, we add energy to the system increasing the vibration of the particles. Eventually these particles break free from their binding forces and melt. The normal melting point of a crystal is the temperature at which it melts under one atmospheric pressure. Increase in pressur..

>This is called as dual nature of mater. The radiation has a dual aspect behaving either as waves or as particles (waves when it interferes, diffracts and particles in a photocell). Einstein showed that a particle having a finite mass has been supposed to be associated with a definite amount of ene..