Not sure, but the reasoning I would use is that to get the 92 kilojoules of energy you needed 1.0 mol nitrogen and are asked what energy for 0.42 mol N.
0.42 * 92 kj
= 38.64 kj
A percentage thing, I think.
6300, lavoisier law
Hydrogen gas would react with oxgyen and release energy. The lighter hydrogen gas would float to the top of the atmosphere; above the heavier nitrogen and oxygen.
Fluorine has the highest electronegativity of any element. Therefore, the energy released when hydrogen and fluorine react is greater than the energy released when hydrogen and bromine react, and that energy must be resupplied to cause either bond to break.
In this reaction the forward reaction, the one making the ammonia, is exothermic meaning it gives off heat when it reacts and heats up the surroundings. The backward reaction is endothermic meaning it takes energy from the surroundings to break the bonds between the Nitrogen and Hydrogen. The exothermic reaction is making bonds. (If you need something to remember this by, snap something. You need to put energy in to break it so breaking chemical bonds needs energy put into it. Endothermic.) If you heat the reactants you are putting energy in so you are increasing the endothermic reaction which is the one breaking the bonds between the Nitrogen and Hydrogen. So by increasing the amount of ammonia that has been broken by heating the reactants and increasing the backward reaction you decrease your yield (the amount of ammonia you get at the end).
1. Energy (from Sun) 2. Water 3. Complex Organic Molecules (From Carbon, Hydrogen, Nitrogen, Phosphorous) such as Amino acids
6300, lavoisier law
Also called haber's process to manufacture Ammonia- N2 + 3H2---> 2NH3 + 22400 Kcal energy
a covalent bond. diatomics include hydrogen, oxygen, chlorine, fluorine, iodine, nitrogen.
Nitrogen fixation is the conversion of atmospheric Nitrogen gas (N2) into Ammonia, and Nitrates that can be used by plants.Much of the nitrogen fixation is done by a symbiotic relationship between nitrogen fixing bacteria and various plants.Thus, the bacteria are not directly doing photosynthesis. The plants do the photosynthesis, and the bacteria are able to get the secondary energy from the plants and plant material.
No similarities: - uranium: energy released by fission - hydrogen: energy released by oxidation
energy is released when the ATP hydrogen bond breaks, there are three hydrogen bonds by gabriela diaz
The energy of the lightening causes nitrogen molecules and water molecules to combine. This creates ammonia and nitrates. These forms can be absorbed by plants.
Hydrogen gas has the lowest mass out of ammonia, bromine, hydrogen and chlorine, so it would have the highest velocity for a given kinetic energy.
Hydrogen, or perhaps high energy nitrogen polymers: http://pda.physorg.com/lofi-news-nitrogen-pressures-energy_139662206.html
Atomic energy, released by the fusion of hydrogen isotopes to make helium.
Ammonia... They convert ammonia to nitrite and use the energy released... Link-- http://jb.asm.org/cgi/content/abstract/185/23/6809
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