Nitrogen gas and Oxygen gas

Nitrogen gas and Oxygen gasBy Mohammad Ibrahim8-D

Nitrogen gas:

Nitrogen is essential to life on Earth. It is a component of all proteins and it can be found in all living systems. Nitrogen compounds are present in organic materials, foods, fertilizers, explosives and poisons. Nitrogen is crucial to life, but excessing it can also be harmful to the environment. The atmosphere is made up of approximately 78%Nitrogen. It makes up more than of the gases in the atmosphere.In its gas form, nitrogen is colourless and odorless.

Nitrogen is a chemical element with symbol N and atomic number 7. It was first discovered and isolated by Scottish physician Daniel Rutherford in 1772. Electrons per shell= 2,5. Its Boiling point: -195.8 C, its Melting point: -210 C.

Nitrogen Liquid Nitrogen The electrons

Uses of nitrogen:-Besides making up 78% of the Earth's atmosphere, nitrogen has a number of uses. Since it is an inert gas(An inert gas is a gas which does not undergo chemical reactions under a set of given conditions), it can be used to replace air and reduce or eliminate oxidation of materials. The most important use is in creating ammonia, which in turn is used to make fertilizer, explosives and other materials. Nitrogen is important to the chemical industry. It is used to make fertilisers, nitric acid, nylon, dyes and explosives. To make these products, nitrogen must first be reacted with hydrogen to produce ammonia. This is done by the Haber process. Nitrogen is an un-reactive gas, so when we pack foods, nitrogen is used inside the sealed packing. This keeps the reactive oxygen gas in the air away from the food.

Applications of NitrogenNitrogen provides a blanketing for our atmosphere for the production of chemicals and electronic compartments.Nitrogen is used as fertilizer in agriculture to promote growth.Pressurized gas for oil.Refrigerant (such as freezing food fast)Explosives.Metals treatment/protectant via exposure to nitrogen instead of oxygen

Liquid nitrogenLiquid nitrogenisnitrogenin aliquidstate at an extremely low temperature. It is a colorless clearliquidwith a density of 0.807 g/ml at its boiling point (195.79 C (77 K; 320 F)). Liquid nitrogen, which has a boiling point of -196C, is used for a variety of things, such as a coolant for computers, in medicine to remove unwanted skin, warts and pre-cancerous cells, and in cryogenics, where scientists study the effect of very cold temperatures on materials.

Better with audio

OxygenAtomic Number:8Atomic Weight:15.9994Melting Point:54.36 K (-218.79C or -361.82F)Boiling Point:90.20 K (-182.95C or -297.31F)Density:0.001429 grams per cubic centimeterPhase at Room Temperature:GasElement Classification:Non-metalColor:colorlessPeriod Number:2Group Number:16Group Name:ChalcogenOxygen

OxygenOxygen is a chemical element with symbol O and atomic number 8. It makes 21% of the atmosphere. It is a member of the chalcogen group(elements in group 6) on the periodic table and is a highly reactive nonmetal and oxidizing agent that readily forms oxides with most elements as well as other compounds.

Applications of oxygen:-Medical:-Uptake of O2 from the air is the essential purpose of respiration, so oxygen supplementation is used in medicine. Treatment not only increases oxygen levels in the patient's blood, but has the secondary effect of decreasing resistance to blood flow in many types of diseased lungs, easing work load on the heart.

Life support and recreational use

Low pressure pure O2 is used in space suits.An application of O2 as a low-pressure breathing gas is in modern space suits, which surround their occupant's body with pressurized air. These devices use nearly pure oxygen at about one third normal pressure, resulting in a normal blood partial pressure of O2.

Usage in the Industry:-Industries use the gas for cutting, welding and melting metals. The gas is capable of generating temperatures of 3000 C and 2800 C. This is required for oxy-hydrogen and oxy-acetylene blow torches. In gas cutting, the oxygen must be of high quality to ensure a high cutting speed and a clean cut.

BY8-d