height barriers


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Orientation Barrier
molecular orientation in the reaction of NO and Cl Orientation Barrier - As noted earlier, the rate of reaction also depends on p, the fraction of collisions that occur with proper orientation. This factor is independent of temperature. Why proper orientation of the reactant molecule is important can be understood from the figure. fig 6.1..
Orientation Barrier
molecular orientation in the reaction of NO and Cl As noted earlier, the rate of reaction also depends on p, the fraction of collisions that occur with proper orientation. This factor is independent of temperature. Why proper orientation of the reactant molecule is important can be understood from the figure. fig 6.13 - Importance of molecular orie..
Concept of Activation Energy
fig 6.11 - Illustration of energy barrier and activation energy involved in a reaction Each reaction has a characteristic value of energy of activation. At a given temperature, a reaction with low activation energy will proceed faster than a reaction with high energy of activation. This c..
Reproductive isolation
reproductive barrier prevents interbreeding a) is essential for a species to maintain its distinct identity. b) contributes to the formation of new species making organic evolution possible...
Hydroelectric Power Plants
Hydroelectric Power Plants - The electricity produced from flowing water is called Hydroelectric power. The world's first hydroelectric power plant was set up in 1882 in Wisconsin USA. It had a very small output, supplying power only for about 250 light bulbs. But from this small start the producti..
Speciation
speciation of african elephant Is also referred as 'Origin of species'. All new species develop from pre existing ones. The formation of one or more new species from the pre existing species is called ' Speciation '. New species are developed mainly by isolation and variation. Isolation is the prevention of mating between breedi..
Diffraction
Diffraction in sound waves and radio waves Diffraction in sound waves and radio waves are readings observed as they have a relatively longer wavelength compared to light wave..
Gaseous Exchange
gaseous exchange in the alveolus of man The capillaries lining the alveoli have impure blood which has low concentration of oxygen. So, the oxygen from the air easily diffuses into the blood through the thin barrier of the alveolus wall. Similarly since the concentration of carbon dioxide is quite high in the blood, the g..
Gaseous Exchange
Gaseous Exchange in the Alveolus of Man The capillaries lining the alveoli have impure blood which has low concentration of oxygen. So, the oxygen from the air easily diffuses into the blood through the thin barrier of the alveolus wall. Similarly since the concentration of carbon di..
Topography
topographic features Topography includes the physical features of the earth like altitude, slope, exposure, mountain chains, valleys, plains, etc...
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